Abstract

We propose and experimentally demonstrate a widely tunable coupled-cavity semiconductor laser based on a novel half-wave bow-tie coupler. The laser comprises two resonate cavities connected through the bow-tie coupler consisting of two back-to-back corner reflectors connected with a short waveguide, which produces a half-wave cross-coupling phase with an optimum coupling coefficient for achieving high mode selectivity. No complex grating or multiple epitaxial growth is needed. By tuning a single electrode at a fixed temperature, 29.6 nm wavelength tuning covering 38 channels with 100 GHz frequency spacing is achieved experimentally, with a side-mode suppression ratio of over 35 dB.

© 2019 Optical Society of America

Mid-infrared widely tunable single-mode interband cascade lasers based on V-coupled cavities

Hanting Yang, Rui Q. Yang, Jingli Gong, and Jian-Jun He
Opt. Lett. 45(10) 2700-2703 (2020)

Wavelength switchable semiconductor laser using half-wave V-coupled cavities

Jian-Jun He and Dekun Liu
Opt. Express 16(6) 3896-3911 (2008)

Tunable single-mode coupled-cavity laser in a standard InP photonics platform

Wesley D. Sacher, Emil Kleijn, Benjamin J. F. Taylor, Hasitha Jayatilleka, Luc M. Augustin, and Joyce K. S. Poon
Opt. Lett. 40(18) 4364-4367 (2015)

Multicomponent gas detection based on concise CW-cavity ring-down spectroscopy with a bow-tie design

Jinduo Wang, Jin Yu, Zeqiang Mo, Jianguo He, Shoujun Dai, Jingjing Meng, Yang Liu, Xue Zhang, and Hong Yi
Appl. Opt. 58(11) 2773-2781 (2019)

Independently tunable double Fano resonances based on waveguide-coupled cavities

Ting Zhao, Huifu Xiao, Yingtao Li, Jianhong Yang, Hao Jia, Guanghui Ren, Arnan Mitchell, and Yonghui Tian
Opt. Lett. 44(12) 3154-3157 (2019)