High-strained InGaAs/InGaAsP multiple quantum wells (MQWs) distributed feedback (DFB) lasers, fabricated using metal organic chemical vapor deposition, are presented at 1.82 μm with a high side-mode-suppression ratio of 49.53 dB. The current- and temperature-tuning rates of the DFB mode wavelength are 0.01 nm/mA and 0.13 nm/°C, respectively. A characteristic temperature of 51 K is also confirmed. The DFB laser demonstrates good performance and can be applied to H<sub>2</sub>O concentration sensing.
© 2013 Chinese Optics Letters
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3490) Lasers and laser optics : Lasers, distributed-feedback
(140.5960) Lasers and laser optics : Semiconductor lasers
Lasers and Laser Optics
Hongyan Yu, Jiaoqing Pan, Yongbo Shao, Baojun Wang, Daibing Zhou, and Wei Wang, "1.82-μm distributed feedback lasers with InGaAs/InGaAsP multiple-quantum wells for a H2O sensing system," Chin. Opt. Lett. 11, 031404- (2013)