24 October 2017 Single higher-order mode ring-shaped VCSEL with surface relief
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Proceedings Volume 10457, AOPC 2017: Laser Components, Systems, and Applications; 104571C (2017) https://doi.org/10.1117/12.2284179
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Abstract
A novel vertical-cavity surface-emitting laser (VCSEL) with single mode, high-power, low divergence, and temperature stability is presented. The most prominent structural feature of the device is that the high optical loss region is formed by an anti-phase surface relief above the top Distributed Bragg Reflectors (DBRs) and the light-emitting aperture is ringshaped with larger region. The simulation results show the device with 15μm oxide aperture and 5μm width ring light emitting region achieves stable single-higher-order transverse mode emission with a side mode suppression ratio (SMSR) of more than 80dB. The maximum continuous-wave (CW) single mode power is up to 15.2 mW and far-field divergence angle (FWHM) is lower than 4.5°. Moreover, the VCSEL maintains CW single mode emission up to a record high temperature of 450K.
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Xia Wang, Yongqin Hao, Zhiwei Wang, Jianlai Xie, Yonggang Zou, Yuan Feng, Xiaohui Ma, "Single higher-order mode ring-shaped VCSEL with surface relief", Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 104571C (24 October 2017); doi: 10.1117/12.2284179; https://doi.org/10.1117/12.2284179
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