中国物理B ›› 2023, Vol. 32 ›› Issue (10): 104205-104205.doi: 10.1088/1674-1056/accff2

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Single-mode GaSb-based laterally coupled distributed-feedback laser for CO2 gas detection

Shi-Xian Han(韩实现)1,2, Jin-Yi Yan(严进一)1, Chun-Fang Cao(曹春芳)1, Jin Yang(杨锦)1, An-Tian Du(杜安天)1,3, Yuan-Yu Chen(陈元宇)1, Ruo-Tao Liu(刘若涛)1,2, Hai-Long Wang(王海龙)3, and Qian Gong(龚谦)1,†   

  1. 1 Key Laboratory of Terahertz Solid State Technology, Shanghai Institute of Microsystem and Information Technology, Shanghai 200050, China;
    2 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, School of Physics and Physical Engineering, Qufu Normal University, Qufu 273165, China
  • 收稿日期:2023-03-23 修回日期:2023-04-24 接受日期:2023-04-25 出版日期:2023-09-21 发布日期:2023-09-27
  • 通讯作者: Qian Gong E-mail:qgong@mail.sim.ac.cn
  • 基金资助:
    Project supported by the Shanghai Municipal Science and Technology Major Project, China (Grant No. 2017SHZDZX03).

Single-mode GaSb-based laterally coupled distributed-feedback laser for CO2 gas detection

Shi-Xian Han(韩实现)1,2, Jin-Yi Yan(严进一)1, Chun-Fang Cao(曹春芳)1, Jin Yang(杨锦)1, An-Tian Du(杜安天)1,3, Yuan-Yu Chen(陈元宇)1, Ruo-Tao Liu(刘若涛)1,2, Hai-Long Wang(王海龙)3, and Qian Gong(龚谦)1,†   

  1. 1 Key Laboratory of Terahertz Solid State Technology, Shanghai Institute of Microsystem and Information Technology, Shanghai 200050, China;
    2 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, School of Physics and Physical Engineering, Qufu Normal University, Qufu 273165, China
  • Received:2023-03-23 Revised:2023-04-24 Accepted:2023-04-25 Online:2023-09-21 Published:2023-09-27
  • Contact: Qian Gong E-mail:qgong@mail.sim.ac.cn
  • Supported by:
    Project supported by the Shanghai Municipal Science and Technology Major Project, China (Grant No. 2017SHZDZX03).

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摘要： We report on a GaSb-based laterally coupled distributed feedback (LC-DFB) laser with Cr gratings operating at 2004 nm for CO2 detection application. Butterfly packaged with single-mode fiber pigtailed, the laser diode operates in the continuous-wave mode in a temperature range from -10 ℃ to 60 ℃, with a maximum output power of 2 mW and a maximum side-mode suppression ratio over 30 dB. Wavelength-modulated absorption spectroscopy of CO2 demonstrates the applicability of the LC-DFB laser to tunable diode laser absorption spectroscopy. Furthermore, the diode junction temperature, which is measured by using the wavelength shift method, exhibits a maximum value of 17 ℃ in the single-mode operation range.

关键词: semiconductor lasers, quantum wells, laser spectroscopy

Abstract: We report on a GaSb-based laterally coupled distributed feedback (LC-DFB) laser with Cr gratings operating at 2004 nm for CO2 detection application. Butterfly packaged with single-mode fiber pigtailed, the laser diode operates in the continuous-wave mode in a temperature range from -10 ℃ to 60 ℃, with a maximum output power of 2 mW and a maximum side-mode suppression ratio over 30 dB. Wavelength-modulated absorption spectroscopy of CO2 demonstrates the applicability of the LC-DFB laser to tunable diode laser absorption spectroscopy. Furthermore, the diode junction temperature, which is measured by using the wavelength shift method, exhibits a maximum value of 17 ℃ in the single-mode operation range.

Key words: semiconductor lasers, quantum wells, laser spectroscopy

中图分类号:  (Semiconductor lasers; laser diodes)

  • 42.55.Px
78.67.De (Quantum wells) 42.62.Fi (Laser spectroscopy)