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.

© 2020 Chinese Laser Press

Experimental demonstration of DFB lasers with active distributed reflector

Gonghai Liu, Gongyuan Zhao, Junqiang Sun, Dingshan Gao, Qiaoyin Lu, and Weihua Guo
Opt. Express 26(23) 29784-29795 (2018)

Direct modulation bandwidth enhancement of uncooled DFB laser operating over a wide temperature range based on groove-in-trench waveguide structure

Yu Han, Qi Tian, Sikang Yang, Jing Luan, Ruigang Zhang, Pengxiang He, Deming Liu, and Minming Zhang
Opt. Express 30(9) 15757-15765 (2022)

Twin-mirror membrane distributed-reflector lasers using 20-μm-long active region on Si substrates

Erina Kanno, Koji Takeda, Takuro Fujii, Koichi Hasebe, Hidetaka Nishi, Tsuyoshi Yamamoto, Takaaki Kakitsuka, and Shinji Matsuo
Opt. Express 26(2) 1268-1277 (2018)

Wide temperature range 0 < T < 85 °C narrow linewidth discrete mode laser diodes for coherent communications applications

John O’Carroll, Richard Phelan, Brian Kelly, Diarmuid Byrne, Liam P. Barry, and James O’Gorman
Opt. Express 19(26) B90-B95 (2011)

Experiment demonstration of high speed 1.3 µm grating assisted surface-emitting DFB lasers

Jing Luan, Yu Han, Sikang Yang, Ruigang Zhang, Qi Tian, Pengxiang He, Deming Liu, and Minming Zhang
Opt. Express 30(14) 25111-25120 (2022)