PM Coupler

 

The Pump Laser Protector (also called Pump Protection Filters) is a passive component which allows maximum transmission from a discrete fibre-coupled pump laser diode and blocks parasitic signals around the centre wavelength of the laser from being reflected back into the laser.

Single-emitter laser diodes are highly regarded for their long term reliability. However, these devices are very sensitive to backward propagating light within the delivery fiber. Backward power imaged onto the diode material, as small as 5% of the pump diode output, can cause accelerated diode degradation and, in the majority of cases, catastrophic failure.That is why we need Pump Laser Protector.

DK Photonics offers filter technology that provides protection to pump diodes under these conditions (up to 50 dB Backward Signal Attenuation). Splicing these filters to the pump output fiber rejects unwanted light before it reaches the diode.

 

 Multimode Pump Laser Protector-2W  Multimode Pump Laser Protector -10~30W  Multimode Pump Laser Protector -100W
 Multimode Pump Laser Protector-2W  Multimode Pump Laser Protector -10~30W  Multimode Pump Laser Protector -100W(water-cool)

 

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