Multi-wavelength sampled Bragg grating quantum cascade laser arrays

作     者：XUE-FENG JIA LI-JUN WANG NING ZHUO JIN-CHUAN ZHANG SHEN-QIANG ZHAI JuN-QI LIU SHU-MAN LIU FENG-QI LIU ZHANGUO WANG 

作者机构：Key Laboratory of Semiconductor Materials ScienceInstitute of SemiconductorsChinese Academy of SciencesBeijing 100083China Beijing Key Laboratory of Low Dimensional Semiconductor Materials and DevicesBeijing 100083China College of Materials Science and Opto-Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing 101408China 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2018年第6卷第7期

页      面：721-725页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 081001[工学-通信与信息系统] 0702[理学-物理学] 

基　　金：National Key Research and Development Program(2017YFB0405300,2016YFB0402303) National Natural Science Foundation of China(NSFC)(61734006,61774150,61435014,61627822,61574136) 

主　　题：波长 通讯技术 曲线 理论分析 

摘      要：A multi-wavelength sampled Bragg grating(SBG) quantum cascade laser array operating between 7.32 and7.85 μm is reported. The sampling grating structure, which can be analyzed as a conventional grating multiplied by a sampling function, is fabricated by holographic exposure combined with optical photolithography. The sampling grating period was varied from 8 to 32 μm, and different sampling order(-1 st,-2 nd, and-3 rd order)modes were achieved. We propose that higher-order modes with optimized duty cycles can be used to take full advantage of the gain curve and improve the wavelength coverage of the SBG array, which will be beneficial to many applications.