Asymmetrical sampling structure to improve the single-longitudinal-mode property based on reconstruction-equivalent-chirp technology
Optics Letters, Vol. 35, Issue 18, pp. 3123-3125 (2010)
http://dx.doi.org/10.1364/OL.35.003123
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Abstract
We propose a special asymmetric sampling structure based on reconstruction-equivalent-chirp technology to effectively suppress the side mode oscillation in the zeroth channel in a sampled Bragg grating semiconductor laser, which improves greatly the single-longitudinal mode (SLM) oscillation capability of the laser. A numerical simulation is performed. The proposed structure guarantees a normalized threshold gain margin between the main mode and the side mode larger than 0.3. A high side-mode suppression ratio is also observed. The proposed method would be of great importance for the fabrication of high-performance and wideband multiwavelength laser arrays with each laser operating in SLM.
© 2010 Optical Society of America
OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(140.3290) Lasers and laser optics : Laser arrays
(140.3490) Lasers and laser optics : Lasers, distributed-feedback
(140.5960) Lasers and laser optics : Semiconductor lasers
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: June 29, 2010
Revised Manuscript: August 20, 2010
Manuscript Accepted: August 22, 2010
Published: September 15, 2010
Citation
Yating Zhou, Yuechun Shi, Simin Li, Shengchun Liu, and Xiangfei Chen, "Asymmetrical sampling structure to improve the single-longitudinal-mode property based on reconstruction-equivalent-chirp technology," Opt. Lett. 35, 3123-3125 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-18-3123
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