Chinese Journal of Lasers, Volume. 47, Issue 7, 701020(2020)
Design and Fabrication of 1160-nm Optically-Pumped Vertical-External-Cavity Surface-Emitting Laser
In the medical field, the 1160-nm wavelength vertical-external-cavity surface-emitting semiconductor laser (VECSEL) is the fundamental frequency lasing source of orange laser. However, the strain accumulation effect induced by the high strain InGaAs quantum well in the luminous zone limits high output power. In this study, the secondary compensation method is proposed for a high strain InGaAs quantum well using the GaAsP material in a single luminescent zone to achieve high material growth quality of optical absorption layers. The structure of the absorption layer containing Al is designed to reduce the photogenic carrier-blocking effect caused by GaAsP barrier and improve the injection efficiency of photogenic carriers. The lasing wavelength and output power of the prepared VECSEL devices are 1160 nm and 1.02 W, respectively. The lasing spot shows symmetrical morphology, and the divergence angles of the spot at orthogonal directions are 10.5° and 11.9°.
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Zhang Zhuo, Ning Yongqiang, Zhang Jianwei, Zhang Jiye, Zeng Yugang, Zhang Jun, Zhang Xing, Zhou Yinli, Huang Youwen, Qin Li, Liu Yun, Wang Lijun. Design and Fabrication of 1160-nm Optically-Pumped Vertical-External-Cavity Surface-Emitting Laser[J]. Chinese Journal of Lasers, 2020, 47(7): 701020
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Received: Mar. 3, 2020
Accepted: --
Published Online: Jul. 10, 2020
The Author Email: Jianwei Zhang (zhangzhuo18@mails.ucas.edu.cn)