All You Need to Know About Fiber Optic System

There several types of passive optic components that are used in a modern day optical transmission system to help perform a number of functions. These components are divided into four categories-  branching devices such as couplers and splitters; connecting devices such as connectors and splices; performance-improving devices such as attenuators, polarizers, dispersion compensators, and isolators and; filtering devices such as fiber Bragg gratings, add/drop filters, and wavelength-division multiplexers (WDMs)/demultiplexers.

Polarization Maintaining Isolator

Polarization Maintaining Isolator

In a fiber optic system isolators have been playing a very important role. And on the other hand where all the passive components that reciprocal, isolators are opposite, they normally are nonreciprocal. They let the passage come through of the optical beam in the forward direction with negative losses and at the same time blocking the transmission in the backward direction with 40- to 70-dB losses.

Types of fiber optic isolators:

  • Polarization effect: a p-dependent isolator should be used if the extinction ratio is important for one. And it can be used with anything, either polarization-maintaining fiber or a regular single-mode fiber. But if the system lacks the polarization dependence, the obvious choice has to be the p-independent isolator.
  • Single-stage or dual-stage: there are two isolator modules in a single package of a dual stage fiber optic isolator allowing >55 dB of isolation. And in most of the applications, a single stage fiber optic provides the required amount of isolation. Dual-stage isolators only add to the cost of the process and bring in losses. A lot of manufacturers out there offer more than two in a single category. If you have a system that would require a lesser grade, it should be taken into consideration for saving yourself from the losses.
  • Wavelength: if you want to go for something that is lesser expensive and highly available then the obvious choice to go for would be standard telecommunications wavelengths of 1310 and 1550 nm. The more commonly available fiber-optic isolators for the visible and near-infrared portions of the spectrum are the ones that are bulky and far more expensive in comparison to the standard telecommunications type.
  • Reliability: until and unless your vendor is ready to provide you with a test report on reliability, make sure you always perform a few quality tests after getting the isolators. The easiest and the most important test that you can conduct is the temperature cycling test. You can use a freezer and a laboratory oven or a hot plate to let go the isolators through a few temperature cycles, in case the environmental chamber is not available. Once you are done with the temperature cycling test, also go for a quick check of measuring the important parameters at room temperature.
  • Termination: maybe it is necessary to use a frequent connection, but chances are it’s not, in these cases always use a fusion splice in place of connectors because the differences in performance in insertion loss and return loss are significant.
  • Price: you can do two important things and significantly save a lot of costs. Firstly, you should always stick to standard products. And secondly, if you want to combine two or three functions into one component, go ahead with hybrid components

Each and every optical system has its own set of requirements and buying a fiber optic isolator can be a very confusing task. So follow these thumb rules to buy yourself one and make your task a cake walk.

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How to Add CWDM MUX/DEMUX System to Your Network?

CWDM stands for coarse wavelength division multiplexing, and it was made for fiber optic network to increase the capacity of it without having to add extra fiber.  The most important component in the CWDM system is the CWDM Mux/Demux (multiplexer/demultiplexer).

Normally, it helps in transmitting multiple wavelengths and increases the fiber capacity if the cable to an extent of 18 different signals over one fiber. The following information is going to help you in installing your CWDM Mux/Demux system. Until and unless you are someone who has an experience in doing this, it’ll be of a great help if you choose to follow the given below information.

Introduction to CWDM MUX/DEMUX Module

This device is extremely reliable and simple to use. It comes in a variety of combinations and wavelengths that mostly ranges from 1270nm to 1610nm (20nm spacing). This module can fit into different modules depending upon the design we pick for the channels, after comprehending its application. One fiber can withstand four different wavelengths normally with a 4 channel Mux/Demux module. This gives the fiber the liberty to release four different kinds of data simultaneously.

Compact CWDM Mux and Demux

Compact CWDM Mux and Demux

CWDM Mux/Demux can be used on a normal day as a multiplexer or demultiplexer at each end of the fiber cable span. Although, it still has to be installed in pairs.

How to Add CWDM MUX/DEMUX System to Your Network?

Install the Rack-Mount Chassis: take a standard 19-inch cabinet or a rack and install the CWDM rack-mount chassis over it. Next, whenever you choose to glue the chassis to the rack, make sure that you are installing the rack-mount chassis on the similar rack or maybe next to it. Hence further, it is easier for you to connect the cables between the CWDM Mux/Demux modules and the CWDM SFP transceivers in your system.

Install the CWDM Mux/Demux Modules: first thing that you should do is to manage the alignment of the chassis shelf to insert the module and then next very slowly push the module into the cavity of the shelf. Also, don’t forget to screw the nails harder.

Connect the CWDM Mux/Demux to Switch: once we have inserted the CWDM SFP transceiver in the switch, the next step is to pick the single mode patch cable and connect the transceiver immediately. Also, make sure that the CWDM Mux/Demux pairs are carrying the transceivers at the same wavelength. If the wavelength is different it is going to automatically show a different color.

Connect the CWDM MUX/DEMUX Pairs: finally, when you have seen the CWDM multiplexer at one end of the network, make sure to use the demultiplexer at the other end of the network. And finally, last but not the least, complete CWDM Mux/Demux system by connecting it to the Mux/Demux pairs and install them successfully.

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How High Quality PM Filter WDM Helps in Better Optical Fiber Communication?

The PM Filter WDM is maintaining signal polarization while providing wavelength division multiplexing. Wavelength Division Multiplexing (WDM) is similar to Frequency Division Multiplexing (FDM), but WDM is done in the IR portion of the electromagnetic spectrum instead of Radio Frequencies (RF). There are two IR channels per fiber in the WDM system and the use of WDM can multiply the bandwidth of a fiber optic communication system. PM Filter WDM series is ideal for high speed WDM network systems. It is based on environmentally stable thin film technology.

PM Filter WDM

PM Filter WDM

The product has features like low insertion loss and high extinction ratio. It also has excellent stability and reliability. They are ideal for maintaining polarization maintaining fiber lasers, amplifiers, and high-speed communication systems. Also, as the names suggest it is used over WDM network system and sensors.

Features of PM Filter WDM

Many different wavelengths can be sent along the fiber simultaneously, making it a powerful medium of an optical communication link. WDM is the technology of combining a number of wavelengths onto the same fiber.

Listed below are some of the powerful features –

Capability Upgrade – It dramatically increases the capacity of a fiber network.

Transparency – Each optical channel can carry any transmission format.

Wavelength Switching – The architecture of wavelength switching allows the re-configuration of the optical fiber.

Wavelength Routing – It is possible to design communication networks and switches with the use of the wavelengths.

Is there any need of Wavelength Division Multiplexing?

Yes, for better communication it will be really helpful. This technology is multiplexing optical signals onto a single fiber. It enables bi-directional communications over fiber connections by using different wavelengths of laser lights. The capacity of the network can be increased significantly without laying more optical fiber. So, it is famous among telecommunication companies but is totally different from frequency division multiplexing.

PM Filter WDM is used for EDFA applications complying with RoHS and Telcordia GR-1221-CORE. During the development or manufacturing phase adhere to the ITU standards. It is mainly used for drop functions or for the addition of single channel. Advanced packaging technology is used along with sensor systems.

There are companies who specialize in the development of PM Filter WDM. Are you staying in the USA? One can get the best manufacturers here delivering high quality optical components like PM components and isolator. The products can be found online and also clients can customize the specifications according to the requirement. The product is available in a different wavelength range which includes – Polarization Maintaining Filter WDM 1310/1550 & 1480/1550nm, Polarization Maintaining Filter WDM T1550/R980nm, Polarization Maintaining Filter WDM 980/1060nm, and Polarization Maintaining Filter WDM 1310T1550/R980nm.

 

 

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How effective is Polarization Maintaining (PM) Isolator?

Polarization Maintaining Isolator is also known as Fiber Optic Isolator which allows light to travel only in one direction. For any state of polarization, it minimizes the back reflection and back scattering in the reverse direction. It is a two port micro-optic device built with PM panda fiber. Polarization Maintaining Isolator is used widely in amplifier systems, fiber optic systems, and lasers. It prevents unwanted feedback into an optical oscillator and the device operations are dependent on the Faraday’s effect turn.

Polarization Maintaining Isolator

Polarization Maintaining Isolator

Faraday rotator is the main component of the optical isolator. The polarization dependent isolator mainly consists of 3 parts like an input polarizer, a Faraday rotator, and an output polarizer. The output polarizer is known as the analyser. Input polarizer vertically polarizes the light traveling in the forward direction. Using the analyser, the light traveling in the backward direction becomes polarized by 45°. The polarization dependent isolators are mainly used in free space optical systems as the polarization of source is maintained well by the system.

What are the devices in which the isolator is used?

PM isolator is used in communication systems, polarization maintaining fiber-optic amplifier and instrumentation applications. Also, the insulating system is used in CATV Fiberoptic Links, Fiberoptic System Testing and Fiberoptic LAN System.

Here are the best features of polarization maintaining optical isolator –

  • High Extinction Ratio
  • High Return Loss
  • High Isolator
  • Epoxy Free Optical Ratio
  • Low Insertion Loss

The light traveling in the forward direction is split by the input birefringent wedge into a vertical component which is called ordinary ray and a horizontal component is known as extraordinary ray. The rotator rotates both the o-ray and e-ray by 45°. Again the output birefringent wedge combines the two components. On either sides of the isolator, collimators are used and the beam is split & diverged in the isolated direction.

There are now companies who specialize in the manufacturing of the isolators for various applications. Based on the requirement of applications, isolators are manufactured precisely. Also, one can get the isolators online and the common PM Isolators available online are Polarization Maintaining Isolator 1310 & 1480 & 1550nm and Polarization Maintaining Tap Isolator 1310 & 1550nm.

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Combining the Multiplexer and Demultiplexer into One!

As advancements in technology take place, the need for faster data transmission emerges. Often, continuing with the old equipment results in major losses. If you have been fed up of the existing data transfer speeds at your place, it is certainly the time when you should look out for change. And not just change, a solution which is cost effective, of the best quality and the best service should always be your goal.

CWDM Mux and DeMux Module

CWDM Mux and DeMux Module

DK Photonics Technology Limited is one of the leading companies in designing and manufacturing of high quality optical passive components, which includes a large array of fiber-optic components. You can count on them to get the best solution for your everyday problems. They have brought the advantages of both the multiplexer, which is multi input and single output device and the demultiplexer, which is a single input and multiple output device, into one product. It has eradicated the need for having both the products separately.

About our CWDM Mux and DeMux Module:

For industries employing multiplexer and demultiplexer for telecommunication, fiber sensor and fiber laser applications such as line monitoring, networking, cellular communications, optical amplifiers etc. DK Photonics CWDM MUX+DEMUX Module is an ideal choice. It supports wavelengths between 1270nm to 1610nm in 20nm increments, allowing different services up to 10Gbps to be transported across the same fiber link. It is the latest product that offers a competitive advantage to the industry using it.

The features of CWDM Mux+DeMux Module are:

  • Low insertion loss
  • Wide pass band
  • High channel isolation
  • High stability and reliability
  • Epoxy free on optical path

With so many advanced features, it surely is going to beat the obsolete products. The module combines the need for a multiplexer and demultiplexer into one product. Besides, minimizing the number of wires that are required for the multiple transmissions, the information is multiplexed over a single high data rate link, and then demultiplexed at the other end, along a single communication channel. That is what makes it a more sought after choice.

If you intend to increase your data transfer needs with the optical Mux+DeMux module, you are just a few a steps away. Get a Mux+DeMux module for your industry and connect the data line is to the output line. Enjoy the difference!

Our contact and support:

We are always reachable at the following destinations:

  • Website: http://www.dkphotonics.com
  • E-mail: info@dkphotonics.com
  • Tel:+86-755-36820366
  • Fax:+86-755-26746512
  • Add: DK Photonics Technology Limited
    7/F, Bldg. C, Qinghu Technology Park
    Qingxiang Rd., Longhua New Dis.
    Shenzhen, Guangdong, China 518109

 

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In-Line Polarizer is up for Grab Now at Best Low Price!

A polarizer is an optical filter which is used to pass light waves of a specific polarization blocking other light waves. The In-Line Polarizer is used for converting un-polarized light into polarized light having the high extinction ratio. What does the polarizer do specifically? The light wave of a specific polarization at slow or fast axis is passed effectively and the other waves are blocked. So use of it in fiber lasers, amplifiers, and communication system helps in the better maintenance of the system. DK Photonics is one such company who explicitly deals with the supply of high power products.

Company Profile

DK Photonics Technology Limited is the company headquartered in Shenzhen, China with factories located in varied locations. The company has expertise in designing and manufacturing of high-quality optical components for telecommunication, sensors, and applications. The company has the experience in fiber-optic design & installation which also includes setup of transmission systems and assemblies. Total care for quality service is taken and the company has passed RoHS certification & ISO9001 quality system.

In-line Polarizer USA

In-Line Polarizer USA

The company deals in customized components which production of filter based multiplexers, coupler modules, switching modules and fiber components. Cost effective products are used over multiplexers or amplifiers.  One of the clients quoted the statement as, “We are satisfied with the cost effective fiber optic solutions provided by DK Photonics”.

Optical Fiber In-Line Polarizer and its Specifications

This device is a tiny part which is important for efficient working of the electronic product and this low-cost device converts the un-polarized light into linear polarized light. The device can be connected using input/output connector in the optical system.

Here are the striking features of In-line Polarizer –

Light weight and compactness: It is a light weight device which is easy to carry and it helps in the execution of the appliance.

High return loss: The loss of power in signal reflected by a discontinuity in optical fiber results in high return loss.

Low insertion ratio: Insertion cost is the loss of signal power from the insertion of a device into the optical fiber and it is much less than other devices.

High extinction ratio: It means that ratio of the optical power level of a digital signal produced from an optical source.

High stability: The tiny device is quite stable and reliable. It is one of the most trusted devices to be used on optical fibers.

DK Photonics provides a product which is best for communication purposes at low rates. So, the company builds High Power Isolator, 1064nm Components, PM Components, Pump Combiner and much more. Integrated service is provided to the clients with in-house installation setup at the industry location. All description to all products is provided over the website with updates of the latest components. Online payment service is available with easy booking and delivery of services. Get the best prices on the products like no other company.

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Combining the Multiplexer and Demultiplexer into One

As advancements in technology take place, the need for faster data transmission emerges. Often, continuing with the old equipment results in major losses. If you have been fed up of the existing data transfer speeds at your place, it is certainly the time when you should look out for change. And not just change, a solution which is cost effective, of the best quality and the best service should always be your goal.

D K Photonics Technology Limited is one of the leading companies in designing and manufacturing of high quality optical passive components, which includes a large array of fiber-optic components. You can count on them to get the best solution for your everyday problems. They have brought the advantages of both the multiplexer, which is multi input and single output device and the demultiplexer, which is a single input and multiple output device, into one product. It has eradicated the need for having both the products separately.

About our CWDM Mux and DeMux Module:

For industries employing multiplexer and demultiplexer for telecommunication, fiber sensor and fiber laser applications such as line monitoring, networking, cellular communications, optical amplifiers etc. DK Photonics CWDM MUX+DEMUX Module is an ideal choice. It supports wavelengths between 1270nm to 1610nm in 20nm increments, allowing different services up to 10Gbps to be transported across the same fiber link. It is the latest product that offers a competitive advantage to the industry using it.

The features of CWDM Mux+DeMux Module are:

  • Low insertion loss
  • Wide pass band
  • High channel isolation
  • High stability and reliability
  • Epoxy free on optical path

With so many advanced features, it surely is going to beat the obsolete products. The module combines the need for a multiplexer and demultiplexer into one product. Besides, minimizing the number of wires that are required for the multiple transmissions, the information is multiplexed over a single high data rate link, and then demultiplexed at the other end, along a single communication channel. That is what makes it a more sought after choice.

If you intend to increase your data transfer needs with the optical Mux+DeMux module, you are just a few a steps away. Get a Mux+DeMux module for your industry and connect the data line is to the output line. Enjoy the difference!

Our contact and support:

We are always reachable at the following destinations:

  • Website: http://www.dkphotonics.com
  • E-mail: info@dkphotonics.com
  • Tel:+86-755-36820366
  • Fax:+86-755-26746512
  • Add: DK Photonics Technology Limited

7/F, Bldg. C, Qinghu Technology Park

Qingxiang Rd., Longhua New Dis.

Shenzhen, Guangdong, China  518109

 

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10-Year Forecast – Fiber Optic Sensors

According to ElectroniCast, the combined use of Distributed and Point fiber optics sensors are forecast to reach $5.98 Billion in 2026…

 ElectroniCast Consultants, a leading market/technology forecast consultancy, today announced the release of their market forecast and analysis of the global consumption of Fiber Optic Sensors.

According to the study, the combined use of Distributed and Point (local) fiber optics sensors reached $3.38 Billion last year (2016), and the worldwide value is forecast to reach $5.98 Billion in 10-years (2026). Market forecast data in this study report refers to consumption (use) for a particular calendar year; therefore, this data is not cumulative data.

Both the American region and the EMEA region held similar market share in the overall (distributed- and point-types) fiber optic sensor value last year. The Europe, Middle East, Africa region (EMEA) held a very slight lead in relative market (value) share last year; however, the Asia Pacific region (APAC) is projected to take-over the leadership position during the forecast period.

The EMEA region is forecast to have a strong role in the use of distributed fiber optic systems, driven by the region’s use of systems in aviation, as well as in the

Petrochemical, Natural Resources, Energy/Utility application categories.

In terms of fiber optic point sensors, the American region is forecast to maintain the market share lead throughout the 1st-half of the forecast period (2016-2021), mostly led by the use of Fiber Optic Gyros (FOGs) in the Military/Aerospace application category. The consumption values are based on the end-user application and the end-user region.

FOGs held a 65 percent market share of the worldwide Point fiber optic sensor consumption value in 2016. “All regions, thanks mainly to increases in the use in aviation and military critical mission applications (Unmanned Aerial Vehicle/UAV and missile guidance, navigation, north finding/tracking, robotics, aviation and aeronautics and other) are forecast to show impressive increase consumption quantity (volumes) and values for the FOG systems,” said Stephen Montgomery, Director of the Fiber Optics Components group at ElectroniCast Consultants.

The market forecast of the Distributed Sensors is segmented by the following applications:

  • Manufacturing Process/Factory
  • Civil Engineering/Construction (buildings, bridges, tunnels, etc)
  • Military/Aerospace/Security
  • Petrochemical/Energy/Utilities/Natural Resources
  • Biomedical/Science

The Fiber Optic Point Sensor Forecast further segmented by the following sensing/measuring quantity (measurand) types:

  • Mechanical Strain
  • Temperature
  • Pressure
  • Chemical, Gas, Liquid
  • Vibration, Acoustic, Seismic
  • Displacement, Acceleration, Proximity
  • Electric, Current and Magnetic Field – Fiber Optic Sensors
  • Rotation (such as Fiber Optic Gyroscopes: FOGs)

“ElectroniCast counts each Point fiber optic sensor as one unit; however, the volume/quantity (number of units) of Distributed fiber optic sensors is based on a complete optical fiber line/link, which we classify as a system. Since a distributed optical fiber line (system) may have 100s of sensing elements in a continuous-line, it is important to note that we count all of those sensing elements in a distributed system as one (system) unit – only. Distributed fiber optic sensor systems involve the optic fiber with the sensors embedded with the fiber; also included is the optoelectronic transmitter/receiver, connectors, optical fiber, cable (fiber jacket) the sensor elements, and other related components,” Montgomery added.

According to ElectroniCast, the combined use of Distributed and Point fiber optics sensors reached $3.38 Billion in 2016…

 

Continuous Distributed and Point Fiber Optic Sensor

Global Consumption ($3.38 Billion in 2016)

Source: ElectroniCast Consultants


Tags: CWDM Multiplexer, DWDM Multiplexer,19″ rack mount chassis CWDM, CWDM MUX/DEMUX Module, LGX CWDM Module,8CH CWDM Module, 16CH CWDM Module, 100GHz DWDM Mux/Demux, 200GHz DWDM Mux/Demux

DK Photonics – www.dkphotonics.com  specializes in designing and manufacturing of high quality optical passive components mainly for telecommunication, fiber sensor and fiber laser applications,such as 1064nm High Power Isolator,1064nm Components, PM Components, (2+1)x1 Pump Combiner,Pump Laser Protector,Mini-size CWDM,100GHz DWDM,Optical Circulator,PM Circulator,PM Isolator,Fused Coupler,Mini Size Fused WDM.

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Multimode pump combiners now accessible from the place of dk photonics!

Pump combiner is a passive segment, fabricated in view of fused biconical taper (FBT) strategy, generally utilized as a part of fiber laser, fiber amplifier, high power EDFA, biomedical and sensor systems, and so on. DK photonics offers pump combiners worked by engineers with strong information and specialized foundation; they remain by high caliber and financially savvy items with our awesome administrations too.

(2+1)x1 Pump and Signal Combiner

Sorts of Multimode Pump Combiners

2x1pump combiner

DK photonics’ 2×1 multimode pump combiner is intended for high power applications. It highlights excellent optical qualities. These gadgets can be utilized to join the power from a few multimode laser diodes, conveying the consolidated power for applications in modern, military, therapeutic and broadcast communications markets. It has a heat sink package and a hole for temperature monitoring. DK photonics’ multimode combiners offer efficient power exchange for high power applications like direct diode materials handling and pump cascading with a maximum conservation of brightness.

4×1 pump combiner

It highlights extraordinary optical characteristics. These gadgets can be utilized to consolidate the power from a few multimode laser diodes, conveying the joined power for applications in modern, military, restorative and broadcast communications markets. It has a warmth sink bundle and a gap for temperature observing.

19×1 pump combiner

DK photonics’ 19×1 multimode pump combiner is intended for high power applications. It highlights outstanding optical qualities. These gadgets can be utilized to consolidate the power from a few multimode laser diodes, conveying the joined power for applications in mechanical, military, medicinal and broadcast communications markets. It has a warmth sink bundle and a gap for temperature checking. DK photonics’ multimode combiners offer effective power exchange for high power applications like direct diode materials handling and pump falling with a greatest preservation of splendor.

3×1 pump combiner

DK photonics’ 3×1 multimode pump combiner is intended for high power applications. It highlights remarkable optical attributes. These gadgets can be utilized to join the power from a few multimode laser diodes, conveying the consolidated power for applications in modern, military, medicinal and media communications markets. It has a warmth sink bundle and a gap for temperature observing.

7×1 pump combiner

DK photonics’ 7×1 multimode pump combiner is intended for high power applications. It highlights outstanding optical qualities. These gadgets can be utilized to consolidate the power from a few multimode laser diodes, conveying the joined power for applications in mechanical, military, medicinal and media communications markets. It has a warmth sink bundle and an opening for temperature observing.

DK photonics offers pump combiners worked by engineers with strong learning and specialized foundation; offer high caliber and financially savvy items with our incredible administrations also.

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High Quality PM Filter WDM Manufacturing for Telecommunication

Polarization Maintaining Filter Wavelength Division Multiplexer (PM Filter WDM) is best for high speed WDM network systems. It maintains signal polarization while providing wavelength division multiplexing. It is totally dependent on environmentally stable thin films filter technology with high return loss.

What is the need for Wavelength Division Multiplexing?

It can be said as the technology which is multiplexing various optical signals onto a single fiber. It is incorporated using different wavelengths of laser light enabling bi-directional communications over fiber connections. It is different from frequency division multiplexing which is applied to a radio carrier. As the name suggest, multiplexer transmit several signals together. It is popular among telecommunication industry because without laying more optical fiber companies can expand the capacity of the network.

PM Filter WDM USA

PM Filter WDM

Why to use PM Filter WDM?

  1. It can be used best to maintain polarized fiber amplifiers and is used in DWDM systems.
  2. With help of this WDM, high speed communication systems are developed.
  3. It also helps in the development of instrumental applications.

Features of PM Filter WDM

Listed below are some of the PM Filter WDM features –

  • It has high extinction ratio.
  • High return ratio.
  • Great reliability and strong environmental stability.
  • Low insertion loss.

PM Filter WDM is used for applications like EDFAs, fiber sensing system, WDI module and many more. Compliance is maintained in terms with RoHS and Telcordia GR-1221-CORE. While designing and manufacturing ITU standards should be followed. PM Filter WDM is used by companies and individuals to perform drop function or adding a single channel. It is used on sensor systems with advanced packaging technology.

Performance Specification of PM Filter WDM

Here are detailed specifications of the WDM –

PARAMETERS                                                                                                    VALUES

Reflection wavelength range                                                      1270 nm – 1350nm; 1450nm – 1490 nm

Pass wavelength range                                                                 1530nm – 1600nm; 1530nm – 1600nm

IL over pass wavelength                                                                <0.6dB; <0.6dB

IL over reflection band (input -> output)                                <0.5dB

Thermal stability                                                                               <0.005Db/C

Return loss                                                                         50dB

Minimum isolation                                                                          12dB

Extinction ratio                                                                                  20dB

Reflection band isolation @ pass band wavelength          15dB

Maximum tensile load                                                                   5N

Fiber type                                                                                           PM panda fiber

Operational temperature                                                             -5 degrees C to + 70 degrees C

Storage temperature                                                                     -40 degrees C to +85degreesC

Specifications can be changed or altered as required. Also, the values specified are not subjected to any connector loss. PM fiber and the connector key are aligned to slow axis. There many companies in the USA providing high power products and polarized maintaining products. Three different types of PM Filter WDM manufactured are 130/1550nm Polarization Maintaining Filter WDM; 980/1550nm Polarization Maintaining Filter WDM and T1550/R1310 & 1490NM Polarization Maintaining Filter WDM.

There are various private companies in USA designing and developing PM Filter WDM. One can get the contacts online of companies delivering high quality optical passive components. Services are provided by professionals having expertise in plant installation, assembly, transmission, and testing. These products are widely used fiber lasers, telecommunication services, and scientific research.

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