The Application of Fiber Optic Connector

Fiber Optic Connector has been widely used in fiber optic transmission lines, fiber optic patch panels and fiber-optic test instruments and meters. The Fiber Connector is one of the most essential components for fiber optic communication. It mate or connect with optical devices, modules, and fibers. Fiber connector is also the key part used in fiber Patch cord and fiber Pigtail.

In fiber optics design, when the system is capable of normal operation, if you are trying to build the local network or LAN in your home then you most probably know you will need a fiber patch cable and may be a hub or we achieved a very good results. Choosing a good fiber optic modem depends on a few factors, including availability. We need to consider not only some unexpected problems appear in the system design, but also expect the system to achieve the effect of normal operation. During the process of system design, we have to consider the worst case appear and related plans, is looking forward to improved operating results. In system design, security, stability and system access request the end of the fiber is smooth, neat. The connection between the clients must be accurate, micron accuracy or millionths of a meter. The diameter of the commonly used multi-mode fiber is from 50 to 62.5 microns, while the diameter of the single-mode fiber is only 8-9 microns. This size of the diameter of a human hair can (17-180 microns) are compared in diameter, and we can make sure that every trace of error can bring catastrophic losses.

With the expansion of technology development and application of fiber optic patch cables are also achieving rapid development. The types of fiber optic connectors on the market are probably 12 or more, each of which was launched to the specific needs, of course, came to meet, there are some technical limitations. The trend in the market is developing at a moderate price, compact plug-mode and all can support the requirements of the new transmission distribution system. As users expect that the ongoing development of the telecommunications industry also supports the large-scale application of the optical fiber, in large part due to the rapid growth of demand in the way of communication and entertainment services on the fiber link.

The fiber optic connection is very stringent accuracy of the equipment, the species of fiber patch cords are many kinds. So the connector must be very clean. Fiber optic connectors and accessories are usually mounted on a series of house, a fingerprint or external dust seriously affect the performance of the connector, and even the loss of communication. Therefore, the connector can be stored in clean protective sleeve without connection. Then we should also put fiber optic connector.

Fiber optic connectors according to the different transmission media can be divided into common silicon-based optical fiber single-mode and multimode connectors, as well as other issues such as plastic and as the transmission medium of optical fiber connector; connector structure can be divided into: FC SC, ST, LC, D4, DIN, MU, the MT and so on in various forms. The optical interface is the physical interface used to connect fiber optic cable. FiberStore as the main professional fiber optic products manufacturer in china offer a various kinds of fiber optic connectors, FC Connectors, LC Connectors, SC Connectors, ST Connectors. You can buy fiber optic connection products on our store with your confidence. All of fiber optics supplies with high quality but low price.

What is a fiber optic coupler?

Fiber optic coupler is used to split the fiber optic light into several parts at a certain ratio. fiber optic coupler are important passive components used in FTTX networks. A fiber-optic splitter is a device that takes a single fiber optics signal and divides it into multiple signals. Fiber optic is a type of technology that uses an optical signal instead of an electrical one to send data from one place to another. The cable is made either of glass or plastic coated in plastic, instead of the copper wire that was commonly used in the past. But two kinds of fiber splitters are popular used, one is the traditional fused type fiber optic coupler (FBT coupler), which features competitive prices; the other is PLC fiber optic coupler, which is compact size and suit for density applications. Both of them have its advantages to suit for different requirement. The use of fiber optic technology has become increasingly popular for several reasons. Fiber optic cables are much less sensitive to electrical interference, marking them more reliable than older types of cabling. They are also able to carry very large amounts of data in comparison with that older systems can handle. This makes them very efficient, despite the facts that there are some drawbacks to the system. The cables require a thicker covering to protect the optical cables and they also need to have repeaters installed to boost the signal strength in order for the system to work, two hindrances to the use of this technology.

Despite the limitations, fiber optics technology is in use for both home and commercial applications. The most common type of fiber optic coupler splits the output evenly, with half the signal going to one leg of the output and half going to the other. It’s possible to get splitters that use a different split ratio, putting a larger amount of the signal to one side of the splitter than the other. The Splitters are identified with a number that represents the signal division, such as 50/50 if the split is even, or 80/20 if 80% of the signal goes to one side and only 20% to the other.

Some types of the fiber optic coupler are actually able to work in either direction. This means that if the device is installed in one way, it acts as a splitter and divides the incoming signal into two parts, sending out two separate outputs. If it is installed in reverse, it acts as a coupler, taking two incoming signals and combing them into a single output. Not every fiber optic coupler can be used this way, but those that can are labeled as reversible or as coupler/splitters.

CWDM/DWDM Integration

DWDM-CWDM integration – an easy-to-realize expansion of existing CWDM systems

The difference between CWDM and DWDM lies in the channel spacing between neighbored wavelengths, for CWDM 20 nm and for DWDM 0.8/0.4 nm (using 100 GHz/50 GHz grid). Pan Dacom Direkt utilizes this advantage for an efficient CWDM/DWDM integration. Thereby up to sixteen DWDM channels are transmitted simultaneously in only one CWDM channel (1530 nm and 1550 nm). Thus an easy-to-realize channel extension can be achieved under continued use of existing CWDM components and thereby garantuees a protection of investment.

CWDM-DWDM integration – an easy-to-realize expansion of existing CWDM systems

What is DWDM

DWDM (Dense Wavelength Division Multiplexing)

DWDM definition:

Up to 40/80 wavelength over one pair of fiber

DWDM highlights

Up to 90 DWDM wavelength over one pair of fiber
DWDM channel spacing 0.8 nm (100 GHz grid) or 0.4 nm (50 GHz grid)
Distances over 1,000 km can be achieved with the use of optical amplifier
DWDM wavelength: 1528 nm (channel 61) to 1563 nm (channel 17)

DWDM principle

The functionality of DWDM resembles to the one of CWDM. Unlike to CWDM technology, the channel spacing for DWDM is 0.8/0.4 nm (100 GHz/50 GHz grid). This small channel spacing allows to transmit simultaneously much more information.Currently a restriction on wavelengths between 1530 nm and 1625 nm exists which corresponds to the C and L band. In this connection DWDM wavelengths from DWDM technology is more expensive compared to CWDM caused by the need of more sophisticated transceivers.

What is CWDM

CWDM (Coarse Wavelength Division Multiplexing)

CWDM definition: Up to 16 different wavelength over one pair of fiber.

CWDM highlights

Up to 16 wavelength over one pair of fiber

DWDM channel spacing 20 nm, 1720 nm to 1610 nm
Distances up to 120 km
Cost-effective WDM solution
Scalable by hybrid CWDM/DWDM – perfect solution for your investment

CWDM principle

CWDM is a wavelength multiplexing technology for city and access networks. Transmission is realized using 16 channels with wavelengths between 1270 nm and 1610 nm. Due to the channel spacing of 20 nm cost-effective lasers can be used. The channel width itself is 13 nm. The remaining 7 nm is designed to secure the space to the next channel.

What is WDM?

The IT refers to a medium where information is transmitted via a link. If two locations want to communicate with each other, one link is sufficient. To connect more locations more links are required What if only one link e.g. between two cities is available, but more applications shall be connected? Using the WDM technology, fiber optic links can be utilized for data transmission more efficiently.

The idea of xWDM technology

Each application is allocated to a dedicated color (wavelength) to communicate with a remote station. The advantage is that different colors can be simultaneously transmitted using one pair of fiber. For this purpose a multiplexer combines all different colors which will then be transmitted to the remote station over one pair of fiber. At the remote site the combined signal is separated again into different colors by a demultiplexer. Generally only one light beam with one wavelength is transferred over a pair of fiber. The wavelength multiplexing technology provides the ability to transmit more light beams, each having different wavelengths, using the same optical link. Due to the fact that wavelengths do not interfere, single light beams can be separated from each other using simple filters. A laser serves as the source of light and light-sensitive diode as receiver unit. Wavelength multiplexing is differentiated in CWDM (Coarse Wavelength Division Multiplexing) and DWDM (Dense Wavelength Division Multiplexing) technology. Advantage: With the use of WDM, it is possible today to transfer nearly 1 Tbps (C-band) via one pair of fiber.

FTTx: fiber to the home/Premises/Curb

CATV companies are considering fiber to replace coax, since the cost is reasonable and performance unlimited. Municipalities or private individuals are looking at installing their own FTTH systems when phone or CATV companies won’t do it soon enough. Housing developers are learning about FTTH because their customers are demanding the highest bandwidth broadband connections. DK Photonics

All these plans depend on finding or training adequate numbers of technicians. The FOA, working with operating companies, municipalities, installers and our approved schools has developed requirements for FTTx training and certification, with the goal of providing enough qualified FTTx installation technicians to make these plans possible.

FOA CFOS/H Certified FTTH Technician certification programs are now being introduced in many FOA-approved schools. Students seeking certification must complete the FOA CFOT program first to obtain their first level certification, then attend a short course on FTTx that will prepare them for the CFOS/H exam. Those interested in learning about FTTx but are not seeking certification will find the courses good information on the current technology.