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Proceedings Paper

Theoretical and experimental investigation of multi-wavelength fiber laser
Author(s): Jianghai Wo; Qizhen Sun
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Paper Abstract

In this paper, a method for realizing a stable multi-wavelength EDFL at room temperature is analyzed theoretically and obtained experimentally. We have proposed a multi-wavelength fiber ring cavity laser by using EDF as the gain medium. A F-P and a band-pass filter are inserted into the cavity to achieve the selection of multi-wavelength. Meanwhile, by inserting a nonlinear optical loop mirror (NOLM) in the linear cavity, which can suppresses the mode competition owing to the homogeneous broaden line in EDF and eliminates the unstable single wavelength lasing, stable output can be obtained at room temperature. As a result, power-stable, broad bandwidth and uniform multi-wavelength operations with narrow line-width and high side mode suppression ratio are obtained at room temperature. In addition, we also demonstrate a kind of tunable multi-wavelength EDFL based on multi-channel FBG (M-FBG). Four-wavelength output with the flatness and SNR of almost 1dB and more than 50dB is achieved and the output wavelength can be changed by applying stress on the M-FBG.

Paper Details

Date Published: 28 October 2009
PDF: 7 pages
Proc. SPIE 7514, Photonics and Optoelectronics Meetings (POEM) 2009: Fiber Optic Communication and Sensors, 75141D (28 October 2009); doi: 10.1117/12.845233
Show Author Affiliations
Jianghai Wo, Huazhong Univ. of Science and Technology (China)
Qizhen Sun, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 7514:
Photonics and Optoelectronics Meetings (POEM) 2009: Fiber Optic Communication and Sensors
Dieter Stefan Jäger; Hequan Wu; Shuisheng Jian; Desheng Jiang; Deming Liu; Weiwei Dong; Qizhen Sun; Xiaochun Xiao, Editor(s)

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