Single-mode GaSb-based laterally coupled distributed-feedback laser for CO_(2)gas detection  

作　　者：韩实现 严进一 曹春芳 杨锦 杜安天 陈元宇 刘若涛 王海龙 龚谦 Shi-Xian Han;Jin-Yi Yan;Chun-Fang Cao;Jin Yang;An-Tian Du;Yuan-Yu Chen;Ruo-Tao Liu;Hai-Long Wang;Qian Gong(Key Laboratory of Terahertz Solid State Technology,Shanghai Institute of Microsystem and Information Technology,Shanghai 200050,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Shandong Provincial Key Laboratory of Laser Polarization and Information Technology,School of Physics and Physical Engineering,Qufu Normal University,Qufu 273165,China)

机构地区：[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

出　　处：《Chinese Physics B》2023年第10期443-447,共5页中国物理B（英文版）

基　　金：Project supported by the Shanghai Municipal Science and Technology Major Project,China(Grant No.2017SHZDZX03)。

摘　　要：We report on a GaSb-based laterally coupled distributed feedback(LC-DFB)laser with Cr gratings operating at 2004 nm for CO_(2)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 CO_(2)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 

分 类 号：TN248[电子电信—物理电子学]