Chinese Optics Letters, 2020, 18 (6): 061401, Published Online: May. 14, 2020
Directly modulated active distributed reflector distributed feedback lasers over wide temperature range operation (−40 to 85°C) Download: 894次
distributed feedback laser wide temperature range active distributed reflector directly modulated laser
Abstract
We experimentally demonstrated that the distributed feedback (DFB) lasers with the active distributed reflector achieved a 25.8 Gb/s operation over a wide temperature range of ?40 to 85°C. The DFB lasers can achieve additional feedback from an active distributed reflector with accurately controlled phase, and single-mode yields are not related to the position of cleave. The threshold currents of the fabricated laser are 6 mA and 20 mA at ?40°C and 85°C, respectively. The side mode suppression ratio of the fabricated laser is above 50 dB at all temperatures. Transmissions of 25.8 Gb/s after 10 km single-mode fibers with clear eye openings and less than 0.8 dB power penalty over a wide temperature range have been demonstrated as well.
Gonghai Liu, Gongyuan Zhao, Gong Zhang, Qiaoyin Lu, Weihua Guo. Directly modulated active distributed reflector distributed feedback lasers over wide temperature range operation (−40 to 85°C)[J]. Chinese Optics Letters, 2020, 18(6): 061401.