1549.32 nm Filter, 2 Ports Module Housings a pin photodiode

a pin photodiode

55 nm to 1543

The coupler is a 1x4 850 nm

It is widely applied to blocking the unwanted noise signals in YDFA and fiber pump laser systems

with low insertion loss and high return loss

1549.32 nm Filter, 2 Ports Module Housings a pin photodiodeThis WDM based pump signal combiner utilizes thin film filter technology to combine the pump power with the input signal. It features low insertion loss, low PDL, and negligible PMD. This device is used for building broadband, low noise EDFAs and raman amplifiers for ultra long haul networks. It is housed in a high power handling metal package. FEATURES Low Insertion Loss Low PDL Negligible PMD High Stability and Reliability USE IN Building Broadband