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Proceedings Paper

Chirped-grating tunable DFB laser: novel laser diode with broader continuous tuning range
Author(s): Nong Chen; Asanobu Kitamoto; Yoshiaki Nakano; Kunio Tada
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Paper Abstract

A novel wavelength-tunable semiconductor laser is proposed, where use is made of a chirped grating. Threshold conditions of this chirped grating tunable (CGT) distributed feedback (DFB) laser with three electrodes have been numerically studied on the basis of coupled-mode equations with transfer-matrix forms. It has been found that the DFB lasers with gratings properly chirped may have enhanced single-mode continuous tunability. A preliminary experimental result has shown a 7.3 nm tuning range in a GaAlAs/GaAs CGT DFB laser.

Paper Details

Date Published: 11 May 1993
PDF: 4 pages
Proc. SPIE 1979, 1992 International Conference on Lasers and Optoelectronics, (11 May 1993); doi: 10.1117/12.144143
Show Author Affiliations
Nong Chen, Univ. of Tokyo (Japan)
Asanobu Kitamoto, Univ. of Tokyo (Japan)
Yoshiaki Nakano, Univ. of Tokyo (Japan)
Kunio Tada, Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 1979:
1992 International Conference on Lasers and Optoelectronics

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