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Proceedings Paper

Temporal characteristics of output pulses in Brillouin fiber-optical ring laser
Author(s): Yue-lan Lü; Xue-qing Chong; Li-Jun He
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Paper Abstract

The influence of pump energy on the dynamics of Brillouin fiber-optical ring laser by the CW (continuous wave) DFB fiber laser was studied experimentally and theoretically. Using a 1Km-length single model 10 μm-diameter fiber in our experimental regime, half-periodic, serial identical Stokes pulses were found in the experiments when pump energy was low (less than 1.5 Pth ); then they became quarter-periodic or even smaller periodic with further increase of pump energy; until the periodic disappeared as pump power is great enough (more than 4Pth ), the output of Brillouin fiber-optical ring laser is tend to give continuous wave. At mean time, the duration of Stoke pulses became narrow gradually, and the peak power of Stoke pulses increased gradually with the increase of pump energy. Based on coupled wave equations of SBS process, using a seed of loons, theoretical simulation of temporal characteristics of pulses by SBS process in single model fiber has been given numerically and computationally. By computer modulation of dynamics of Brillouin fiber-optical ring laser by the CW (continuous wave) DFB fiber laser, the characteristic of periodic, pulse duration and peak power of Stoke were analyzed. Using both pump exhausts effect and multilevel SBS nonlinear process, we tried to explain some experimental phenomena.

Paper Details

Date Published: 5 March 2007
PDF: 7 pages
Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 659506 (5 March 2007); doi: 10.1117/12.725686
Show Author Affiliations
Yue-lan Lü, Harbin Engineering Univ. (China)
Harbin Institute of Science and Technology (China)
Xue-qing Chong, Harbin Engineering Univ. (China)
Harbin Institute of Science and Technology (China)
Li-Jun He, Harbin Engineering Univ. (China)
Harbin Institute of Science and Technology (China)


Published in SPIE Proceedings Vol. 6595:
Fundamental Problems of Optoelectronics and Microelectronics III

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