A Widely Tunable InGaAs/InGaAsP DBR Laser for Gas Detection
- Resource Type
- Conference
- Authors
- Yu, Hongyan; Wang, Mengqi; Zhou, Daibing; Zhou, Xuliang; Wang, Pengfei; Zhang, Yejin; Pan, Jiaoqing; Wang, Wei
- Source
- 2022 Photonics & Electromagnetics Research Symposium (PIERS) Photonics & Electromagnetics Research Symposium (PIERS), 2022. :209-213 Apr, 2022
- Subject
- Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Geoscience
Photonics and Electrooptics
Methane
Temperature distribution
Quantum well lasers
Indium gallium arsenide
Distributed Bragg reflectors
Laser tuning
Gas lasers
- Language
- ISSN
- 1559-9450
We demonstrate a widely tunable distributed Bragg reflector (DBR) laser, in which the DBR section was realized by using butt-jointed InGaAsP $(\lambda = 1.46 \mu m)$ material. By adjusting the DBR current, a widely tuning range of 10.3nm with 21 consecutive channels is obtained at room temperature (RT) for three-section device. With the help of the heat sink temperature, the tuning range is expanded to 11.7nm. A side mode suppression ratio (SMSR) of higher than 30dB is obtained for all channels. It is a promising light source for methane detection. This experiment also demonstrates that the butt-jointed active-passive integration technology developed for the InGaAsP quantum-wells (QWs) can be successfully applied in the InGaAs QWs.