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Proceedings Paper

Investigation of dual-wavelength operation with tunable mode separation in multi-section DBR lasers
Author(s): Dawei Fang; Yingjun Zheng; S. D. Roh; Swint Reuel; Chengxia Li
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Paper Abstract

The dual-wavelength operation with tunable mode separations for InGaAs-GaAs ridge waveguide DBR lasers are studied. The DBR lasers consist of a common gain section and two separate DBR section. The two DBRs utilize uniform gratings with the same Bragg period, resulting in a single nominal lasing wavelength. Dual-wavelength operation is achieved by simultaneously lasing the front grating mode and the back grating mode. By employing a spacing section between the two DBR gratings and applying a tuning current on it, the interaction between two mode is minimized and the control over the wavelength turning is greatly improved. Three device dimensions were investigated. The relationships between two-mode operation parameters and biasing/tuning conditions for each type are analyzed. The promising applications of this multi-wavelength optical source, such as in optical generation of millimeter-wave, are discussed.

Paper Details

Date Published: 5 September 2002
PDF: 4 pages
Proc. SPIE 4913, Semiconductor Lasers and Applications, (5 September 2002); doi: 10.1117/12.482208
Show Author Affiliations
Dawei Fang, China Institute of Metrology (China)
Yingjun Zheng, China Institute of Metrology (China)
S. D. Roh, Univ. of Illinois/Urbana-Champaign (United States)
Swint Reuel, Univ. of Illinois/Urbana Champaign (United States)
Chengxia Li, China Institute of Metrology (China)

Published in SPIE Proceedings Vol. 4913:
Semiconductor Lasers and Applications
Yi Luo; Yoshiaki Nakano, Editor(s)

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