Polarization Maintaining Tap Coupler: Features & Major Applications

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 The
polarization maintaining (PM) tap coupler basically provides optical
signal splitting with tap ratio while also preserving the exact state of
polarization. By combining the PM collimators and thin-film filter technology,
the polarization maintaining coupler features high return loss, low insertion
loss, environmental stability, and high extinction ratio.

 

The PM tap coupler splits the light coming
from the input PM fiber into two outputs PM fibers. The polarization state
further can be aligned with the fast axis or the slow axis of the polarization
maintaining fibers. The stainless steel and rugged tap coupler are mainly
designed for stability as well as high optical performance. The device with
split ratios from 1 to 50% is now available so you can utilize it accordingly
to your needs.

 

Some major applications of polarization
maintaining tap coupler:

 

There are various applications of PM tap
coupler, among which the major ones include:

 

Monitoring signal in polarization
maintaining fiber systems

Fiber sensors

Helps in power-sharing of
polarization-sensitive devices and systems

Polarization maintaining interferometers

Fiber optic devices and instruments

Coherent detection

Polarization maintaining tap couplers are
made of separate crystals of lights and the output port of lights emitted is
different from the polarization filter coupler. The coupling ratio is more
accurate, while it can also handle high power as compared to the PM filter
couplers.

 

On the other hand, the PM couplers can also
be used to split high power linearly polarized light into different paths and
that too without disturbing the state of polarization (SOP). Furthermore, it
can even be used as a power tap for monitoring the signal power in the PM fiber
system that functions without perturbing the linear state of polarization (SOP)
of light in the polarization maintaining fiber.

 

Features of polarization maintaining tap
coupler:

 

Some of the major features of PM tap
couplers include:

 

Low insertion loss

Compact inline package device

High stability power

Can handle high energy and power

The optimum optical performance in a
different environment

Excellent credibility

High extinction ratio

Accurate tap ratio

Accurate coupling ratio

So, these are a few primary features and
applications of polarization maintaining tap couplers that you must be aware
of. Besides, if you have the requirement of this device or any other type of PM
coupler with tailored specifications then you may simply talk to PM coupler
manufacturers and get the best assistance for the same. Just be sure to consult
the right manufacturer so you can be confident that you are investing your
money and time on the right device and at the right place.