Chirped-grating tunable DFB laser: novel laser diode with broader continuous tuning range

Nong Chen; Asanobu Kitamoto; Yoshiaki Nakano; Kunio Tada

doi:10.1117/12.144143

11 May 1993 Chirped-grating tunable DFB laser: novel laser diode with broader continuous tuning range

Nong Chen, Asanobu Kitamoto, Yoshiaki Nakano, Kunio Tada

Proceedings Volume 1979, 1992 International Conference on Lasers and Optoelectronics; (1993) https://doi.org/10.1117/12.144143
Event: 1992 International Conference on Lasers and Optoelectronics, 1992, Bejing, China

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.

Citation Download Citation

Nong Chen, Asanobu Kitamoto, Yoshiaki Nakano, and Kunio Tada "Chirped-grating tunable DFB laser: novel laser diode with broader continuous tuning range", Proc. SPIE 1979, 1992 International Conference on Lasers and Optoelectronics, (11 May 1993); https://doi.org/10.1117/12.144143

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