title: Study on DFB semiconductor laser array integrated with grating reflector based on reconstruction-equivalent-chirp technique.
abstract: A 4-channel distributed feedback (DFB) semiconductor laser array with incorporation of a grating reflector utilizing reconstruction-equivalent-chirp technique is theoretically studied and experimentally demonstrated. By integrating with a grating reflector, 40% increase of slope efficiency, about 10mA decrease of threshold current and 7dB increase of side mode suppression ratio (SMSR) are achieved with a deviation of wavelength spacing being less than 0.07nm. The SMSRs of all the lasers are higher than 60dB.
authors.forename: Yunshan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Jilin
authors.initials: J
authors.lastname: Zheng
authors.forename: Fangzheng
authors.initials: F
authors.lastname: Zhang
authors.forename: Yuechun
authors.initials: Y
authors.lastname: Shi
authors.forename: Junshou
authors.initials: J
authors.lastname: Zheng
authors.forename: Jun
authors.initials: J
authors.lastname: Lu
authors.forename: Shengping
authors.initials: S
authors.lastname: Liu
authors.forename: Bocang
authors.initials: B
authors.lastname: Qiu
authors.forename: Xiangfei
authors.initials: X
authors.lastname: Chen