The Polarization Maintaining Filter Coupler 1310&1550nm is a polarization maintaining coupler which either splits the light from the input PM fiber into two output PM fibers, or combines light signals from two PM fibers into a single PM fiber.
The Polarization Maintaining Filter Coupler 1310&1550nm is a polarization maintaining coupler which either splits the light from the input PM fiber into two output PM fibers, or combines light signals from two PM fibers into a single PM fiber. The state of polarization can be aligned either with the slow axis or the fast axis of the PM fibers. The rugged stainless steel package is designed for high optical performance and stability. This compact device offers low excess insertion loss, low back reflection, and high extinction ratio. Split ratios from 1 to 50% are available.
The device can be used to split high power linearly polarized light into multiple paths without perturbing the line are state of polarization (SOP).It can also be used as a power tap to monitor signal power in a PM fiber system without disturbing the linear SOP of light propagating in the PM fiber. Applications include PM fiber interferometers, power sharing in polarization sensitive systems, and signal monitoring in PM fiber systems.
DK Photonics offers a large selection of PM Filter Coupler. These devices can handle powers rang from 300mW to 2W or other on request, available in 1×2 and 2×2 types, and have center operating wavelengths ranging from 850 nm to 1650nm.
If you do not see a standard PM Filter Coupler Module that meets your needs, we welcome the opportunity to review your desired specification and quote a custom PM Filter Coupler Module. Requests for custom fiber pigtails,different coupling ratio, different wavelengths and handling power of operation or other specific needs will be readily addressed.
|Center Wavelength(nm)||1310 or 1550|
|Operating Wavelength Range(nm)||±40|
|Tap Ratio(%)||1 ± 0.2%, 5 ± 1.0%, 10 ± 2.0%, and 50%|
|Insertion Loss(dB)||IL related to CR||IL related to CR|
|Extinction Ratio(dB)||Type B(Both of axis working)||≥20||≥18|
|Type F(Fast axis blocked)||≥22||≥22|
|Optical Power (CW) (mW)||≤300|
|Fiber Type||SMF-28 or PM Panda fiber for tap portPM Panda fiber for input & output ports|
|Operating Temperature(℃)||-5 to +70|
|Storage Temperature(℃)||-40 to +85|
|Package Dimensions (mm)||5.5 x L35|
*Above specifications are for device without connector.
*For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower and ER will be 2dB lower.
*The PM fiber and the connector key are aligned to the slow axis and fast axis is blocked.
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