[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.3807/KJOP.2022.33.3.099

Performance Evaluation of an All-optical Automatic Gain-controlled Erbium-doped Fiber Amplifier for Suppression of Signal Fluctuation in Terrestrial Free-space Optical Communication Systems

Jeong, Yoo Seok (PGM R&D Group 2, LIG Nex1)
Kim, Chul Han (School of Electrical and Computer Engineering, University of Seoul)

Publication Information

Korean Journal of Optics and Photonics / v.33, no.3, 2022 , pp. 99-105 More about this Journal

Abstract

We have evaluated the performance of an all-optical automatic gain-controlled (AGC) erbium-doped fiber amplifier (EDFA) to suppress the optical signal fluctuation induced by atmospheric turbulence in terrestrial free-space optical communication systems. In our measurements, the input power into the EDFA was set to be -30 dBm and -10 dBm to operate the amplifier in the small-signal and saturation regions, respectively. The fluctuations in the optical signal were emulated with an acousto-optic modulator driven with a sinusoidal voltage. From the measured results, we have found that an all-optical AGC EDFA could suppress the optical signal fluctuation effectively, as long as the EDFA operated in the small-signal region with a high feedback amplified spontaneous emission (ASE) power.

Keywords

Automatic gain control; Erbium-doped fiber amplifiers; Free-space optical communications;

Citations & Related Records

Times Cited By KSCI : 2 (Citation Analysis)

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