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