Month: November 2017

Enhance the quality of your fiber optics with polarization beam combiner

A whole new level of communication was achieved with fiber optic cables for communication coming into use in our daily routine. The implementation is done at full throttle of a single fiber optic to send out and bring in a great number of signals, immensely cut down the costs that are invited by the telecom companies, and hence it has achieved enormous recognition.

Each and every day various business houses are moving forward in seeking various substitutes that can help in augmentation of their individual communication experiences. It is a new level of marvel in technology that has highly advanced the quality of fiber optics with the due help of Polarization Beam Combiner. To clearly come to an understanding of this technology, it would take quite a while, but to comprehend the upper layer of it get hold of the basics is not a task. These are majorly divided into two subcategories that are, the incoherent polarization combining and coherent polarization combining.

Polarization Beam Combiner: This device is a robust one that holds the capacity to strongly bring together two phases’ modulated input fibers into a single output fiber or segregating the polarization components of an input fiber connecting two output signals.

  • The handling becomes far easier with these tough devices that are specifically designed with bulkhead connectors.
  • It also holds the capacity to lessen the damage to the environment, given the length of the fiber is really small.
  • The performance they give against the loss of insertion, extinction ratio, and back reflection is amazing.
  • The bandwidth of the operation is really wide on this one and holds the capacity to easily handle signals of a variety of wavelengths.
  • The capacity of handling the power in this device is very high.
  • They very easily have the operational value of working between the ranges of -5 to +70°C.

The application of Polarization Beam: The polarization beam application is wide; it is used in a variety of devices like amplifiers, fiber laser systems, fiber sensor systems, research development, polarization division multiplexer and demultiplexer etc. and the performance it provides is exceptionally well. It has far above the ground permanence and dependability and more to the point features mentioned above. The polarizing beam combiners characteristically have 0° or 45° angle of incidence and a 90° division connecting the beams; this, by and large, is dependent on the arrangement.

A polarization beam combiner is more often than not used in photonics instrumentation, optics, and semiconductors to broadcast p-polarized light and at the same time as reflecting-polarized light. These grasp a world of value when it boils to optics, telecommunication, and fiber applications, and while in the process also makes the functioning effectual as well as unproblematic.

PM Fiber Coupler will add value to the multiplexers and de-multiplexers

A fiber coupler or fiber optic coupler is a device used in optical fiber system with one or multiple input fibers and one or several output fibers. The power distribution is dependent on the wavelength and polarization as the light is entering an input fiber. These couplers can be fabricated in different ways like thermally fusing fibers. There are also couplers that can combine two inputs at different wavelengths into one output without any loss. It is mainly used in wavelength-division multiplexing (WDM) telecom systems to combine the several input channels.

Polarization Maintaining Fiber Coupler
Polarization Maintaining Fiber Coupler

Polarization maintaining fiber coupler is capable of combining two or more inputs into a single output and also divides a single input into two or more outputs. The fused coupler is developed using fusing technique and polarization maintaining fiber. Certain applications for PM couplers include optical sensors, optical amplifiers, and fiber gyroscopes. They are more useful in optical communication & transmission and is available in different configuration of 1×2, 2×2, 1×3 (monolithic) and 1×4 (compact cascaded).

Features and characteristics of PM fiber coupler

  1. It incorporates Low Insertion Loss
  2. It has high extinction ratio
  3. Available in compact In-Line Package
  4. It enables high stability and reliability
  5. It maintains good uniformity with high directivity
  6. Wide variety of wavelengths 780 nm-2005 nm
  7. It is used for fiber optic instruments and fiber sensors
  8. It is also used in research works and enables coherent detection

They provide an improved PER (≥20 dB including connectors) and a wide -40 °C to 85 °C operating range. The couplers undergo extensive testing and verification of the PER and they are available with 2.0 mm narrow key FC/PC and FC/PC connectors. The IL will be 0.3dB higher and RL will be 5 dB for devices with connectors. The extinction ratio is also specified in the same way and they are aligned to the slow axis of the fiber. They are available in compact packaging options and it is advisable to contact the companies who specialize in the manufacturing of PM Fiber Coupler.