Direct modulation of widely tunable sampled grating DBR lasers

San-Liang Lee; Mark E. Heimbuch; Daniel A. Tauber; Larry A. Coldren

doi:10.1117/12.239326

1 May 1996 Direct modulation of widely tunable sampled-grating DBR lasers

San-Liang Lee, Mark E. Heimbuch, Daniel A. Tauber, Larry A. Coldren

Proceedings Volume 2690, Wavelength Division Multiplexing Components; (1996) https://doi.org/10.1117/12.239326
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

The linewidth, chirp and mode-suppression-ratio (MSR) of directly modulated sampled grating DBR (SGDBR) lasers has been measured. Although the tuning range can be up to an order of magnitude larger than in simple DBR lasers (i.e. 60 nm vs 6 nm), we find that the linewidth, chirp and MSR are about the same or better (i.e. (Delta) (nu) < 5 MHz, (alpha) equals 3-8, and MSR > 40 dB) over a wide range of operating parameters. The modulation bandwidth was in excess of 4 GHz, and the dynamic MSR remained > 40 dB as long as the current did not swing below threshold.

Citation Download Citation

San-Liang Lee, Mark E. Heimbuch, Daniel A. Tauber, and Larry A. Coldren "Direct modulation of widely tunable sampled-grating DBR lasers", Proc. SPIE 2690, Wavelength Division Multiplexing Components, (1 May 1996); https://doi.org/10.1117/12.239326

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