Polarization maintaining optical fiber amplifier and optical...

Details Polarization maintaining optical fiber amplifier and optical... Polarization maintaining optical fiber amplifier and optical...

H - Electricity

04

J

H04J 14/02 (2006.01) H01S 3/067 (2006.01) H04B 10/18 (2006.01) H01S 3/094 (2006.01) H01S 3/10 (2006.01)

Patent

CA 2392462

So as to provide an optical fiber amplifier which can improve gain and reduce noise, and an optical amplifier which can restrain unnecessary polarization component in the signal output light, maintaining polarization of a signal light and performing optical amplification a polarizer is connected between a first EDF and a second EDF. An amplified spontaneous emission is emitted from the output end of the first EDF with the amplified signal light and is incident to the polarizer. The polarizer is disposed so as to transmit a polarization component which is parallel with the signal light. Among the lights which are incident to the polarizer, a light having a polarization component which is parallel with the signal light is rejected.

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