Abstract

We present the design of a widely tunable laser diode which employs a coupled-cavity sampled grating rear reflector with interleaved connections for use as the wavelength discrimination and tuning enhancement element. Simulations show that this new reflector in conjunction with a cleaved output facet for the laser yields a source with a tuning range of ${>}50$ nm. Due to the absence of a front grating reflector a highly uniform output power can be obtained for a fixed gain current with a 0.35 dB variation achievable for an output power of ${+}15$ dBm across 195 modes on a 25 GHz spacing. The SMSR for all modes is close to 40 dB. The device can be integrated with a wideband front reflector at the expense of an increase in threshold current and a reduced tuning range.

© 2010 IEEE

Design and fabrication of a quantum cascade laser with a chirped sampling grating

Xue-feng Jia, Li-jun Wang, Ning Zhuo, Yan-jiao Guan, Shou-zhu Niu, Jin-chuan Zhang, Shen-qiang Zhai, Jun-qi Liu, Shu-man Liu, Feng-qi Liu, and Zhan-guo Wang
OSA Continuum 2(5) 1783-1790 (2019)

Design of a monolithic tunable laser based on equivalent-chirp grating reflectors

Yitang Dai, Kun Xu, Jian Wu, Yan Li, Xiaobin Hong, Hongxiang Guo, and Jintong Lin
Opt. Lett. 35(23) 3880-3882 (2010)

Analysis on steady-state characteristics of widely tunable SG-DBR laser with residual facet reflectivity model

Xiaoying He, Yonglin Yu, Dexiu Huang, Shan Jiang, Wen Liu, and D. N. Wang
J. Opt. Soc. Am. B 26(8) 1511-1518 (2009)

Mode-locking and frequency mixing at THz pulse repetition rates in a sampled-grating DBR mode-locked laser

Lianping Hou, Mohsin Haji, and John H. Marsh
Opt. Express 22(18) 21690-21700 (2014)

Narrow-linewidth thermally tuned multi-channel interference laser integrated with a SOA and spot size converter

Chun Jiang, Quanan Chen, Kuankuan Wang, Qiaoyin Lu, Mingzhi Lu, and Weihua Guo
Opt. Express 29(9) 13246-13255 (2021)