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24 February 2016 Gain control dynamics of thulium-doped fiber amplifier at 2 μm
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Proceedings Volume 9744, Optical Components and Materials XIII; 974419 (2016)
Event: SPIE OPTO, 2016, San Francisco, California, United States
This work is novel in that it explains the modeling and simulation of a thulium-doped fiber amplifier (TDFA) in a reconfigurable wavelength division multiplexing (WDM) system operating at 2 μm. We use the optical gain-clamping technique in order to control gain amplification and eliminate deleterious channel power fluctuations resulting from input power variation at the TDFA. The investigated system consists of 12 channels with -4 dBm total input power. Simulation results indicate that approximately1.5dB power excursion is produced after dropping 11 channels in unclamped-gain amplifier, and only 0.005 dB in a clamped-gain amplifier. Additionally, a clamped configuration brings the power excursion from 4.2 dB to under 0.08 dB, after adding 11 channels to the investigated system. Hence, optical gainclamping is a simple and robust technique for controlling the power transient in amplifiers at 2 μm.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. A. Khamis and K. Ennser "Gain control dynamics of thulium-doped fiber amplifier at 2 μm", Proc. SPIE 9744, Optical Components and Materials XIII, 974419 (24 February 2016);

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