10 January 2005 Tunable gain-clamped double-pass erbium-doped fiber amplifier with a DBR lasing cavity including a fiber Bragg grating and a fiber reflection mirror
Author Affiliations +
Proceedings Volume 5623, Passive Components and Fiber-based Devices; (2005) https://doi.org/10.1117/12.570906
Event: Asia-Pacific Optical Communications, 2004, Beijing, China
Abstract
A tunable, gain-clamped (GC) double-pass Erbium-doped fiber amplifier (EDFA) using only one fiber Bragg grating (FBG) has been demonstrated, which solves the problem existing the conventional GC-EDFA using two FBGs, in which the clamped-gain is very difficult to be tuned. In the new GC-EDFA, the lasing oscillation for clamping the gain is produced between a FBG and a fiber reflection mirror, and a variable optical attenuator (VOA) is used to change the loss of the laser, which is filtered solely from a narrowband filter for tuning the clamped-gain, however it does not change the signal power directly. Meanwhile, the double-pass configuration enhances efficiently the gain, therefore, compared with the single-pass configuration, the maximum possible input signal power for gain-clamping is greatly extended. Furthermore, the FBG can depress the strong backward amplification spontaneous emission in double-pass configuration, so it can reduce the noise figure a certain extent. Finally, a gain-tunable GC-EDFA with a wide dynamic input power range is demonstrated.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lilin Yi, Lilin Yi, Li Zhan, Li Zhan, Chien Hsien Taung, Chien Hsien Taung, Qinghao Ye, Qinghao Ye, Yuxing Xia, Yuxing Xia, } "Tunable gain-clamped double-pass erbium-doped fiber amplifier with a DBR lasing cavity including a fiber Bragg grating and a fiber reflection mirror", Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); doi: 10.1117/12.570906; https://doi.org/10.1117/12.570906
PROCEEDINGS
7 PAGES


SHARE
Back to Top