Abstract

A novel design of grating-assisted microcylinder surface-emitting laser (GAMSEL) is presented. GAMSEL has two gratings: top grating and side grating. Both gratings have the number of periods close to the azimuthal mode number of the whispering gallery mode (WGM) supported by the microcylinder cavity, therefore, they behave like second-order gratings of a straight waveguide. The top grating scatters the WGM vertically so as to form the surface emission while the side grating selects the mode having the proper emission pattern to lase. Through the cooperation of the two gratings, GAMSEL becomes a single-mode surface-emitting laser. Due to its small volume, GAMSEL is predicted through simulation to have a threshold current about 1 mA and a direct modulation bandwidth higher than 40 GHz. Besides, relying on the lateral microcylinder cavity, GAMSEL does not require highly reflective mirrors as vertical-cavity surface-emitting lasers do, which makes this design easily apply to different wavelengths such as the near infrared 1310- and 1550-nm wavelength bands.

© 2016 IEEE

Single-mode surface-emitting microcylinder/microring laser assisted by a shallowly-etched top grating

Xiang Ma, Quanan Chen, Can Liu, Qiaoyin Lu, and Weihua Guo
Opt. Express 27(15) 21729-21740 (2019)

Experiment demonstration of high speed 1.3 µm grating assisted surface-emitting DFB lasers

Jing Luan, Yu Han, Sikang Yang, Ruigang Zhang, Qi Tian, Pengxiang He, Deming Liu, and Minming Zhang
Opt. Express 30(14) 25111-25120 (2022)

Directly modulated azimuthally polarized vector beam laser design

Xiang Ma, Shaobo Li, Xiaodong Liang, Wenqi Yu, Quanan Chen, Qiao Yin Lu, and Weihua Guo
Appl. Opt. 61(26) 7547-7551 (2022)

Polarization-stable single-mode 795 nm grating-coupled surface-emitting laser for quantum sensing

Pingping Qiu, Hengjie Zhou, Tongxin Wang, Qiuhua Wang, RuIkang Zhang, and Qiang Kan
Opt. Express 31(25) 42562-42570 (2023)

Polarization control of 795 nm vertical-cavity surface-emitting lasers by in-phase surface gratings

Qiuxue Fu, Yurun Sun, Shuzhen Yu, Ancheng Wang, Jiajing Yin, and Jian-Rong Dong
Appl. Opt. 61(28) 8389-8394 (2022)