Multisection semiconductor lasers for optical microwave generation have been fabricated that consist of a loss-coupled distributed feedback (LC-DFB), a phase control, and an amplifier section. High-frequency self-pulsations are generated according to the concept of a single-mode laser with short optical feedback. The effect of the optical feedback via the phase control and the amplifier section on the self-pulsation is apparently shown as a result of the superior single-mode characteristic of the LC-DFB section. Continuous frequency tuning is achieved in the range of 17–35 GHz.
© 2004 Optical Society of America
Dae-Su Yee, Young Ahn Leem, Sung-Bock Kim, Dong Churl Kim, Kyung Hyun Park, Sang-Taek Kim, and Boo-Gyoun Kim, "Loss-coupled distributed-feedback lasers with amplified optical feedback for optical microwave generation," Opt. Lett. 29, 2243-2245 (2004)