Q-switched output in vertical external cavity surface emitting lasers

Weiming Yu; Yanrong Song; Jianghai Hu; Yonggang Wang; Xiaodong Bai; Zhigang Zhang

doi:10.1117/12.693643

10 June 2006 Q-switched output in vertical external cavity surface emitting lasers

Weiming Yu, Yanrong Song, Jianghai Hu, Yonggang Wang, Xiaodong Bai, Zhigang Zhang

Proceedings Volume 6344, Advanced Laser Technologies 2005; 63441Z (2006) https://doi.org/10.1117/12.693643
Event: Advanced Laser Technologies 2005, 2005, Tianjin, China

Abstract

We present an optically pumped vertical external cavity surface emitting laser using the semiconductor gain chip composed of quantum wells. With a semiconductor saturable absorber mirror (SESAM), we obtained a Q-switched-like pulse output. The output power reached more than 3 mW at a center wavelength of 1007nm whose repetition frequency was 100 kHz and time bandwidth was 500ns. We discussed the possible reasons that the output power was lower compared with the CW operation. We also investigated the relationship between the intra-cavity intensity and the output pulse width. By designing the gain chip more carefully and increasing the pump power, it should be possible to obtain entirely mode-locking operation.

Citation Download Citation

Weiming Yu, Yanrong Song, Jianghai Hu, Yonggang Wang, Xiaodong Bai, and Zhigang Zhang "Q-switched output in vertical external cavity surface emitting lasers", Proc. SPIE 6344, Advanced Laser Technologies 2005, 63441Z (10 June 2006); https://doi.org/10.1117/12.693643

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