Loss-coupled distributed-feedback lasers with amplified optical feedback for optical microwave generation.
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.
Yee
Dae-Su
DS
Optical Communication Devices Department, Electronics and Telecommunications Research Institute, Daejeon 305-350, South Korea. yds63508@etri.re.kr
Leem
Young Ahn
YA
Kim
Sung-Bock
SB
Kim
Dong Churl
DC
Park
Kyung Hyun
KH
Kim
Sang-Taek
ST
Kim
Boo-Gyoun
BG