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Self-Pulsating Amplified Feedback Laser Based on a Loss-Coupled DFB Laser
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- Authors
- Dae-Su Yee, Young Ahn Leem, Sang-Taek Kim, Kyung Hyun Park, Boo-Gyoun Kim
- Issue Date
- 2007-11
- Citation
- IEEE Journal of Quantum Electronics, v.43, no.11, pp.1095-1103
- ISSN
- 0018-9197
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- Monolithic self-pulsating semiconductor lasers called amplified feedback lasers (AFLs) can generate high-frequency selfpulsations according to the concept of a single-mode laser with shortly delayed optical feedback, which consist of a distributedfeedback (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. © 2007 IEEE.
- KSP Keywords
- All-optical clock recovery, Clock recovery(CR), DFB laser, High Frequency(HF), Operation range, Phase control, Pulsation characteristics, Self-pulsating, Self-pulsation, Semiconductor lasers, Single-mode laser