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Detail
Journal Article
Self-Pulsation in Multisection Distributed Feedback Laser Diode with a Novel Dual Grating Structure
- Authors
- Kyung Hyun Park, Young Ahn Leem, Dae-Su Yee, Yongsoon Baek, Dong Churl Kim, Sung-Bock Kim, Eundeok Sim
- Issue Date
- 2003-06
- Citation
- ETRI Journal, v.25, no.3, pp.149-209
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- 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 Keywords
- Active Layer, Clock extraction, Distributed feedback laser diode, Distributed feedback lasers(DFBs), Dual grating, Grating structure, Important variable, Laser diode(LD), Q-switching, Self-pulsating, Self-pulsation