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Proceedings Paper

1550 nm DFB semiconductor lasers with high power and low noise
Author(s): Yi-Guang Zhao; Anguel Nikolov; Raj Dutt
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Paper Abstract

We present a high power and low noise DFB laser design. The laser has good performance with output power over 200 mW, side-mode suppression ratio over 50 dB, and related intensity noise (RIN) less than -165 dB/Hz in a wide frequency range. We have modeled the performance of Buried Heterostructure (BH) laser and ridge-waveguide laser. Since the BH laser has a build-in index guiding waveguide, the laser mode is very stable, the relaxation oscillations are suppressed, resulting in peak RIN which is much lower than that of the ridge-waveguide laser. In addition, the BH laser has good confinement of the injected carriers in the cavity, the laser threshold current is very low, and the RIN peak is pushed to high frequency at high bias.

Paper Details

Date Published: 21 February 2011
PDF: 7 pages
Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 79332J (21 February 2011); doi: 10.1117/12.873973
Show Author Affiliations
Yi-Guang Zhao, APIC Corp. (United States)
Anguel Nikolov, APIC Corp. (United States)
Raj Dutt, APIC Corp. (United States)

Published in SPIE Proceedings Vol. 7933:
Physics and Simulation of Optoelectronic Devices XIX
Bernd Witzigmann; Fritz Henneberger; Yasuhiko Arakawa; Alexandre Freundlich, Editor(s)

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