中国激光, 2019, 46 (4): 0401002, 网络出版: 2019-05-09   

小型化可调谐外腔面发射绿光激光器 下载: 891次

Compact Tunable External-Cavity Surface-Emitting Green Laser
作者单位
1 重庆师范大学物理与电子工程学院, 重庆 401331
2 北京工业大学应用数理学院, 北京 100124
摘要
以InGaAs多量子阱为有源区材料,以对抽运光透明的AlGaAs/AlAs为后端分布布拉格反射镜材料,采用后端抽运方式,在腔内插入标准具作为滤波元件,通过腔内倍频,获得小型化可调谐的光抽运外腔面发射绿光激光器。作为滤波元件,标准具可压窄基频光的光谱半峰全宽。为了阻止倍频光返回到增益芯片,标准具镀有倍频光高反膜。激光器的基频光调谐范围超过10 nm,倍频绿光在中心波长559 nm处的调谐范围为4 nm,光谱半峰全宽为1.0 nm,最大输出功率为65 mW。
Abstract
By the use of a semiconductor gain chip with InGaAs multiple quantum wells as materials in the active region and the AlGaAs/AlAs, transparent to the pump light, as distributed Bragg reflectors, along with the end-pump geometry to simplify the device structure and an inserted etalon as the tuning element, an optically-pumped compact tunable external-cavity surface-emitting green laser is realized by the intra-cavity frequency doubling technology. The employed etalon narrows the laser linewidth as a tuning element. To prevent the second harmonic from returning to the gain chip, the etalon is coated with a high-reflectivity film at the wavelength of the second harmonic. The tuning range of the fundamental wave is over 10 nm and that of the second harmonic is 4 nm centering at 559 nm. The spectral linewidth of the second harmonic is 1.0 nm and the maximum output power is 65 mW.

邱小浪, 陈雪花, 朱仁江, 张鹏, 郭于鹤洋, 宋晏蓉. 小型化可调谐外腔面发射绿光激光器[J]. 中国激光, 2019, 46(4): 0401002. Xiaolang Qiu, Xuehua Chen, Renjiang Zhu, Peng Zhang, Heyang Guoyu, Yanrong Song. Compact Tunable External-Cavity Surface-Emitting Green Laser[J]. Chinese Journal of Lasers, 2019, 46(4): 0401002.

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