Self-pulsating amplified feedback laser based on a loss-coupled DFB laser
- Authors
- Yee, Dae-Su; Leem, Young Ahn; Kim, Sang-Taek; Park, Kyung Hyun; Kim, Boo-Gyoun
- Issue Date
- Nov-2007
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- all-optical clock recovery; distributed feedback (DFB) lasers; optical feedback; self-pulsation; semiconductor lasers
- Citation
- IEEE JOURNAL OF QUANTUM ELECTRONICS, v.43, no.11-12, pp.1095 - 1103
- Journal Title
- IEEE JOURNAL OF QUANTUM ELECTRONICS
- Volume
- 43
- Number
- 11-12
- Start Page
- 1095
- End Page
- 1103
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/17736
- DOI
- 10.1109/JQE.2007.907194
- ISSN
- 0018-9197
- Abstract
- Monolithic self-pulsating semiconductor lasers called amplified feedback lasers (AFLs) can generate high-frequency self-pulsations according to the concept of a single-mode laser with shortly delayed optical feedback, which consist of a distributed-feedback (DFB) laser, a phase control, and an amplifier section. Since mode degeneracy of the DFB section, which should operate as a single-mode laser, affects the self-pulsation, single-mode characteristics of the DFB section are critical for the self-pulsation. The effect of a complex coupling in the DFB section on the self-pulsation is numerically analyzed to reveal that the complex coupling provides a wide operation range for the self-pulsation. Also, self-pulsating AFLs based on a loss-coupled DFB laser are experimentally demonstrated to verify the self-pulsation characteristics and the capability for all-optical clock recovery.
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