Deeply Etched Inner-Cavity Pit Reflector

A deeply etched pit reflector is presented in this paper. The pit is not depth sensitive and has a comparable reflection and loss to a slot. Moreover, a two-section 750 μm laser cavity based on the pits is demonstrated. The laser achieved a side-mode suppression ratio of 40 dB, a linewidth of 280 KH...

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Bibliographic Details
Published inIEEE photonics journal Vol. 9; no. 1; pp. 1 - 8
Main Authors Dernaika, M., Caro, L., Kelly, N. P., Alexander, J. K., Dubois, F., Morrissey, P. E., Peters, F. H.
Format Journal Article
LanguageEnglish
Published IEEE 01.02.2017
Subjects
Cavity resonators
Distributed feedback devices
Fabrication
Laser modes
Laser tuning
optical waveguides
Semiconductor lasers
Waveguide lasers
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Summary:A deeply etched pit reflector is presented in this paper. The pit is not depth sensitive and has a comparable reflection and loss to a slot. Moreover, a two-section 750 μm laser cavity based on the pits is demonstrated. The laser achieved a side-mode suppression ratio of 40 dB, a linewidth of 280 KHz, and tuning across 40 nm.
ISSN:1943-0655
1943-0655
1943-0647
DOI:10.1109/JPHOT.2017.2656252