Acta Optica Sinica, Volume. 30, Issue 4, 1046(2010)
Research on Mode Locking Characteristics of All-Solid-State Mode-Locked Laser with Semiconductor Saturable Absorber Mirror
Theoretical research on the mode locking characteristics of mode-locked all-solid-state laser with semiconductor saturable absorber mirror has been carried out. According to theoretical model of suppressing Q-switched mode locking and combining with LD-pumped all-solid-state Yb:YAG laser,the reflectivity of SESAM and the critical pump power of suppressing Q-switched mode locking have been studied by numerical simulated calculations under the conditions of different modulation depths,non-saturable losses,saturation fluences,transmittance of the output mirror and other parameters. When the incident pulse fluences on the SESAM are the same,modulation depth,non-saturable loss and saturation fluence have inverse relations with SESAM reflectivity. With the decrease of modulation depth,saturation fluence,transmittance of the output mirror,beam waist and cavity length,the critical pump power also decreases,and suppressing Q-switched mode locking becomes easier. When the crystal length is 1.9 mm,the minimum critical pump power can be obtained.
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Ban Wenzheng, Wang Li, Fan Feng, Li Guang, Men Yanbin, Zhang Xinping. Research on Mode Locking Characteristics of All-Solid-State Mode-Locked Laser with Semiconductor Saturable Absorber Mirror[J]. Acta Optica Sinica, 2010, 30(4): 1046
Category: Lasers and Laser Optics
Received: Aug. 2, 2009
Accepted: --
Published Online: Apr. 20, 2010
The Author Email: Wenzheng Ban (banwenzheng@emails.bjut.edu.cn)