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

被引：2

作者：

Han, Shi-Xian ^{[1
,2
]}

Yan, Jin-Yi ^{[1
]}

Cao, Chun-Fang ^{[1
]}

Yang, Jin ^{[1
]}

Du, An-Tian ^{[1
,3
]}

Chen, Yuan-Yu ^{[1
]}

Liu, Ruo-Tao ^{[1
,2
]}

Wang, Hai-Long ^{[3
]}

Gong, Qian ^{[1
]}

机构：

[1] Shanghai Inst Microsyst & Informat Technol, Key Lab Terahertz Solid State Technol, Shanghai 200050, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

[3] Qufu Normal Univ, Sch Phys & Phys Engn, Shandong Prov Key Lab Laser Polarizat & Informat T, Qufu 273165, Peoples R China

来源：

CHINESE PHYSICS B | 2023年 / 32卷 / 10期

关键词：

semiconductor lasers; quantum wells; laser spectroscopy; ABSORPTION-SPECTROSCOPY;

D O I：

10.1088/1674-1056/accff2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

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 degree celsius to 60 degree celsius, 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 degree celsius in the single-mode operation range.

引用

页数：5

共 18 条

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