Mode-hopping of pi/2 phase-shifted distributed feedback fiber grating laser

Li Wang; Bai Chen; Jialin Chen; Xiaoxing Feng; Zunqi Lin

doi:10.1117/12.667150

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23 December 2005 Mode-hopping of pi/2 phase-shifted distributed feedback fiber grating laser

Li Wang, Bai Chen, Jialin Chen, Xiaoxing Feng, Zunqi Lin

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Proceedings Volume 6028, ICO20: Lasers and Laser Technologies; 60280R (2005) https://doi.org/10.1117/12.667150
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

During the operation of pi/2 phase-shifted distributed feedback Yb-doped fiber grating laser (YDFBL), the phenomenon of mode-hopping has been observed. It has been found that the light power incident into the fiber laser and the ambient temperature will affect the generation of mode-hopping. When the pump power changes in a wide range, i.e., from tens of milliwatts to more than one hundred milliwatts, there are only two modes dominating by turns with the consideration of different resolution error. When the ambient temperature around the fiber grating rises a little, the mode-hopping will be observed. An explanation basing on the spatial hole burning and wavelength shift induced by temperature fluctuation for this phenomenon has been given out.

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Li Wang, Bai Chen, Jialin Chen, Xiaoxing Feng, and Zunqi Lin "Mode-hopping of pi/2 phase-shifted distributed feedback fiber grating laser", Proc. SPIE 6028, ICO20: Lasers and Laser Technologies, 60280R (23 December 2005); https://doi.org/10.1117/12.667150

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