상세정보
학술지
Self-Pulsation in Multisection Distributed FeedbackLaser Diode with a Novel Dual Grating Structure
- 발행일
- 200306
- 출처
- ETRI Journal, v.25 no.3, pp.149-209
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 01MB4500, 반도체 기반 완전광 3R 재생기 모듈, 박경현
- 초록
- A self-pulsating multisection distributed-feedback laser diode (DFB LD) can potentially realize all-optical clock extraction. This device generally consists of three sections, two DFB sections and one waveguide section. The most important variable in this device is detuning, which is the relative spectral position between the stop bands of two DFB sections. We fabricated a novel structure in which two gratings were located one over and one under the active layers. Each grating structure was independently defined in processing so that detuning, which is the prerequisite for self-pulsation, could be easily controlled. Observing various self-pulsating phenomena in these devices under several detuning conditions, we characterized the phenomena as dispersive Q-switching, mode beating, and self-mode-locking.
- KSP 제안 키워드
- Active Layer, Clock extraction, Distributed feedback lasers(DFBs), Dual grating, Grating structure, Important variable, Laser diode(LD), Q-switching, Self-pulsating, Self-pulsation, all-optical