title: Sample Grating Distributed Feedback Quantum Cascade Laser Array.
abstract: A sample grating distributed feedback quantum cascade laser array aim at broad tunability and enhanced side mode suppression ratios is presented. Utilizing a sample grating dependence on emission wavelength and epitaxial side down bonding technique, the array of laser ridges exhibited three separated single mode emissions centered at 4.760, 4.721, and 4.711 μm respectively, in continuous wave at room temperature. Side mode suppression ratios of >35 dB and continuous wave output powers of >10 mW per laser ridge were obtained.
authors.affiliation: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China. flyan2012@semi.ac.cn.
authors.forename: F L
authors.initials: FL
authors.lastname: Yan
authors.affiliation: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China. zhangjinchuan@semi.ac.cn.
authors.forename: J C
authors.initials: JC
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China. liuchuanwei@semi.ac.cn.
authors.forename: C W
authors.initials: CW
authors.lastname: Liu
authors.affiliation: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China. zhuoning@semi.ac.cn.
authors.forename: N
authors.initials: N
authors.lastname: Zhuo
authors.affiliation: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China. fqliu@semi.ac.cn.
authors.forename: Fq
authors.initials: F
authors.lastname: Liu
authors.affiliation: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China. zsqlzsmbj@semi.ac.cn.
authors.forename: S Q
authors.initials: SQ
authors.lastname: Zhai
authors.affiliation: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China. zgwang@red.semi.ac.cn.
authors.forename: Z G
authors.initials: ZG
authors.lastname: Wang
keywords: Patterned AlN submount; Quantum cascade laser array; Sample grating