Low Cost Gain Clamped EDFA for TWDM Passive Optical Network Applications

摘要

The communication system 100 includes a first optical system 242, 242a and a second optical system 270 optically coupled to the clamping laser 202 and the pump laser 204. The first optical system includes first and second optical splitters 244, 244a, 244b. The first optical splitter receives the clamping laser signal 203 from the clamping laser and splits the signal into divided clamping laser signals 203a and 203aa-an. The second optical splitter receives the pump laser signal 205 from the pump laser and splits the signal into divided pump laser signals 205a and 205aa-an. The second optical system includes an amplifier system 200 optically coupled to the first optical system and receiving a multiplexed signal 220u. The second optical system includes erbium-doped fiber 230 and first and second couplers 212, 212a, 212b optically connected to the first and second dividers, respectively.