Zhang Yunshan, Zheng Jilin, Zhang Fangzheng, Shi Yuechun, Zheng Junshou, Lu Jun, Liu Shengping, Qiu Bocang, Chen Xiangfei
Opt Express. 2015 Feb 9;23(3):2889-94. doi: 10.1364/OE.23.002889.
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.
对一种采用重构等效啁啾技术并入光栅反射器的四通道分布反馈（DFB）半导体激光器阵列进行了理论研究和实验验证。通过与光栅反射器集成，斜率效率提高了40%，阈值电流降低了约10mA，边模抑制比（SMSR）提高了7dB，波长间距偏差小于0.07nm。所有激光器的边模抑制比均高于60dB。
