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Proceedings Paper

A novel four-section DBR tunable laser with dual-wavelength lasing
Author(s): Liqiang Yu; Lingjuan Zhao; Dan Lu; Yan Li; JiaoQing Pan; HongLiang Zhu; Wei Wang
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Paper Abstract

A novel mode-beating DBR laser with dual-mode lasing is fabricated. The DBR laser has four parts, a front gain section, a phase section, a DBR grating section, and a rear gain section. When the current of the front gain section is above the threshold, the device is working in single-mode. Dual-mode lasing can be obtained by adjusting the current of the rear gain section. The power difference between the two modes can be less than 1 dB. An optical down-conversion technique was used to measure the beating frequency. The mode-beating frequency of the two modes is about 93 GHz, and the 3- dB linewidth of the mode-beating RF spectrum of the laser when free-running is about 5 MHz. Moreover, the wavelength of the dual-mode can be tuned synchronously when the current injected into the DBR grating section is adjusted. The wavelength tuning range of the device is at least 3 nm.

Paper Details

Date Published: 29 November 2012
PDF: 5 pages
Proc. SPIE 8552, Semiconductor Lasers and Applications V, 85520T (29 November 2012); doi: 10.1117/12.999440
Show Author Affiliations
Liqiang Yu, Institute of Semiconductors (China)
Lingjuan Zhao, Institute of Semiconductors (China)
Dan Lu, Institute of Semiconductors (China)
Yan Li, Beijing Univ. of Posts and Telecommunications (China)
JiaoQing Pan, Institute of Semiconductors (China)
HongLiang Zhu, Institute of Semiconductors (China)
Wei Wang, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 8552:
Semiconductor Lasers and Applications V
Ning Hua Zhu; Jinmin Li; Frank H. Peters; Changyuan Yu, Editor(s)

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