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Proceedings Paper

Mode-hop free operation throughout lifetime confirmed in a 2um distributed Bragg reflector laser for gas sensing
Author(s): M. Shimokozono; T. Kanai; N. Fujiwara; H. Ishii; Y. Ohiso; Y. Ueda; H. Matsuzaki
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Paper Abstract

An InGaAs based distributed Bragg reflector (DBR) laser operating at 2 μm was fabricated and evaluated as a light source for real-time gas sensing for which mode-hop free operation throughout its lifetime is essential. We therefore performed an aging test to confirm mode-hop free operation. Current was injected into the active/SOA region and/or the DBR/phase control (PC) region at 85 °C. The changes in threshold current and wavelength were not significant after 5000 h of aging. As the wavelength shifts for DBR and PC current after aging are comparable, we confirmed mode-hop free operation of the laser throughout its lifetime as a gas-sensing light source.

Paper Details

Date Published: 1 March 2019
PDF: 7 pages
Proc. SPIE 10939, Novel In-Plane Semiconductor Lasers XVIII, 1093910 (1 March 2019); doi: 10.1117/12.2511013
Show Author Affiliations
M. Shimokozono, NTT Device Technology Labs. (Japan)
T. Kanai, NTT Device Technology Labs. (Japan)
N. Fujiwara, NTT Corp. (Japan)
H. Ishii, NTT Device Technology Labs. (Japan)
Y. Ohiso, NTT Device Technology Labs. (Japan)
Y. Ueda, NTT Corp. (Japan)
H. Matsuzaki, NTT Device Technology Labs. (Japan)

Published in SPIE Proceedings Vol. 10939:
Novel In-Plane Semiconductor Lasers XVIII
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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