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Proceedings Paper

Applications of CO2-induced long-period fiber gratings in Er-doped fiber amplifiers
Author(s): Yun-Jiang Rao; Tao Zhu; Zeng-Lin Ran; Ban-Mei Yu; Yi-Ping Wang
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Paper Abstract

In this paper, we describe the applications of novel long period fibre gratings written by high-frequency CO2 laser pulses to Er-doped optical fiber amplifiers (EDFAs). Such a type of gratings has been used for both ASE (Amplified Spontaneous Emission) noise reduction and gain equalization of EDFAs for the first time to our knowledge. The ASE noise of two EDFAs used as a pre-amplifier and an in-line amplifier has been successfully reduced from 4.0dB to ~3.5dB and from ~4.8dB to ~4.3dB with a small-signal gain increase of ~7dB for the in-line amplifier, respectively. In addition, the gain profiles of other two EDFAs have been flattened to +/- 0.5dB by using the LPFGs fabricated.

Paper Details

Date Published: 17 October 2001
PDF: 8 pages
Proc. SPIE 4581, Passive Components and Transmission Systems, (17 October 2001); doi: 10.1117/12.445055
Show Author Affiliations
Yun-Jiang Rao, Chongqing Univ. and Chongqing Bao-Tong Optical Fiber Technology, Ltd. (China)
Tao Zhu, Chongqing Univ. and Chongqing Bao-Tong Optical Fiber Technology, Ltd. (China)
Zeng-Lin Ran, Chongqing Univ. and Chongqing Bao-Tong Optical Fiber Technology, Ltd. (China)
Ban-Mei Yu, Chongqing Univ. and Chongqing Bao-Tong Optical Fiber Technology, Ltd. (China)
Yi-Ping Wang, Chongqing Univ. and Chongqing Bao-Tong Optical Fiber Technology, Ltd. (China)


Published in SPIE Proceedings Vol. 4581:
Passive Components and Transmission Systems
Chongcheng Fan; Norman S. Kwong, Editor(s)

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