Experimental investigation of transients in six cascaded AGC EDFAs and their suppression using a high-speed VOA

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概要

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• We investigate gain transient responses of an automatic gain control (AGC) EDFA with fast electrical feed-forward pump control. Even if each of the AGC EDFAs can well suppress the gain transients for add/drop operations with various switch speeds, the cumulative transients in cascaded AGC EDFAs give rise to a non-negligible impact. We demonstrate that a high-speed variable optical attenuator (VOA) can suppress such cumulative transients. Error-free operation of a surviving channel under the instantaneous load and unload condition with six cascaded AGC EDFAs is confirmed. The burst mode signal is 7-ms duration with 16-dB range.

著者

• Oikawa Yoichi

  Trimatiz Limited

• Ishii Kiyo

  National Institute of Advanced Industrial Science and Technology, Network Photonics Research Center

• Kurumida Junya

  National Institute of Advanced Industrial Science and Technology, Network Photonics Research Center

• Tanizawa Ken

  National Institute of Advanced Industrial Science and Technology, Network Photonics Research Center

• Namiki Shu

  National Institute of Advanced Industrial Science and Technology, Network Photonics Research Center

• Sato Norihiko

  Trimatiz Limited

• Ota Kazuya

  Trimatiz Limited

• Shiga Noriyasu

  Trimatiz Limited

関連論文

• Experimental investigation of transients in six cascaded AGC EDFAs and their suppression using a high-speed VOA

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