Single-mode, narrow-linewidth external cavity quantum cascade laser through optical feedback from a partial-reflector.
Opt Express
; 18(25): 26037-45, 2010 Dec 06.
Article
em En
| MEDLINE
| ID: mdl-21164951
ABSTRACT
An external-cavity (EC) quantum cascade (QC) laser using optical feedback from a partial-reflector is reported. With this configuration, the otherwise multi-mode emission of a Fabry-Perot QC laser was made single-mode with optical output powers exceeding 40 mW. A mode-hop free tuning range of 2.46 cm(-1) was achieved by synchronously tuning the EC length and QC laser current. The linewidth of the partial-reflector EC-QC laser was measured for integration times from 100 µs to 4 seconds, and compared to a distributed feedback QC laser. Linewidths as small as 480 kHz were recorded for the EC-QC laser.
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Base de dados:
MEDLINE
Assunto principal:
Refratometria
/
Lasers
/
Lentes
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article