Experimental Study of a Pulsed Ytterbium-Doped Fibre Laser with Fast and Slow Saturable Absorbers in a Linear Cavity

Chin. Phys. Lett.

2006, Vol. 23

Issue (7): 1790-1792 DOI:

Original Articles

Experimental Study of a Pulsed Ytterbium-Doped Fibre Laser with Fast and Slow Saturable Absorbers in a Linear Cavity

GAN Yu^1,2;XIANG Wang-Hua^1,2;ZHOU Xiao-Fang^1,2;ZHANG Gui-Zhong^1,2;ZHANG Bing^1,2;WANG Yong-Gang^1,3;MA Xiao-Yu^1,3

¹Key Laboratory of Optoelectronics Information and Technical Science (Ministry of Education), Tianjin University, Tianjin 300072 ²College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072 ³Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083

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GAN Yu, XIANG Wang-Hua, ZHOU Xiao-Fang et al 2006 Chin. Phys. Lett. 23 1790-1792

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Abstract We present a linear-cavity stretched-pulse fibre laser with mode locking by a nonlinear polarization rotation and by semiconductor saturable-absorber mirrors. A Q-switched mode-locking cw train and a mode-locking pulse train are obtained in the experiment. We investigate the effects of the equivalent fast saturable absorber and the slow saturable absorbers in experiment. It is found that neither the nonlinear polarization evolution effect nor a semiconductor saturable absorber mirror is enough to produce the stable cw mode-locking pulses in this experiment. A nonlinear polarization evolution effect controls the cavity loss to literally carve the pulses; semiconductor saturable absorber mirrors provide the self-restarting and maintain the stability of the mode-locking operation.

Keywords: 42.55.Wd 42.55.Xi 42.60.Fc 42.60.Gd

Published: 01 July 2006

PACS:	42.55.Wd	(Fiber lasers)
	42.55.Xi	(Diode-pumped lasers)
	42.60.Fc	(Modulation, tuning, and mode locking)
	42.60.Gd	(Q-switching)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2006/V23/I7/01790

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	GAN Yu
	XIANG Wang-Hua
	ZHOU Xiao-Fang
	ZHANG Gui-Zhong
	ZHANG Bing
	WANG Yong-Gang
	MA Xiao-Yu

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