OPSR enhancement of high-temperature operating shallow-surface grating VCSELs.
Appl Opt
; 57(16): 4486-4490, 2018 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-29877397
ABSTRACT
A polarization-stable single-mode 894 nm vertical cavity surface emitting laser (VCSEL) with an orthogonal polarization suppression ratio of 30 dB, even at a temperature up to 80°C, was achieved for atomic clock applications by utilizing shallow-surface gratings. An improved grating VCSEL fabrication technology for mass production was also proposed by taking advantage of the displacement Talbot lithography. The multi-mode grating VCSEL was also measured for other applications that need polarization stability, such as doubled-data-rate polarization multiplexed free-space links.
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MEDLINE
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En
Ano de publicação:
2018
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Article