Theoretical and experimental investigation of multi-wavelength fiber laser

Jianghai Wo; Qizhen Sun

doi:10.1117/12.845233

28 October 2009 Theoretical and experimental investigation of multi-wavelength fiber laser

Jianghai Wo, Qizhen Sun

Proceedings Volume 7514, Photonics and Optoelectronics Meetings (POEM) 2009: Fiber Optic Communication and Sensors; 75141D (2009) https://doi.org/10.1117/12.845233
Event: Photonics and Optoelectronics Meetings 2009, 2009, Wuhan, China

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.

Citation Download Citation

Jianghai Wo and Qizhen Sun "Theoretical and experimental investigation of multi-wavelength fiber laser", Proc. SPIE 7514, Photonics and Optoelectronics Meetings (POEM) 2009: Fiber Optic Communication and Sensors, 75141D (28 October 2009); https://doi.org/10.1117/12.845233

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