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Reliable laboratory transmitter with submegahertz linewidth

 
: Wenke, G.; Patzak, E.; Meissner, P.

Electronics Letters 22 (1986), Nr.4, S.206-7
ISSN: 0013-5194
Englisch
Zeitschriftenaufsatz
Fraunhofer HHI ()
gradient index optics; laser cavity resonators; laser modes; laser transitions; optical communication equipment; semiconductor junction lasers; spectral line breadth; transmitters; 30 db sidemode suppression; 700 khz linewidth; 1.3 micron wavelength; au coating; submegahertz linewidth; external-cavity transmitter configuration; semiconductor laser; spherical reflector; laser mode selection; semitransparent; grin-rod lens; linewidth reduction; 1.45 mw output power

Abstract
An external-cavity transmitter configuration is introduced using a semiconductor laser at 1.3 mu m wavelength, a spherical reflector for laser mode selection and a semitransparent Au-coated GRIN-rod lens for linewidth reduction. At 1.45 mW output power a linewidth of 700 kHz and a laser sidemode suppression of 30 dB is achieved.

: http://publica.fraunhofer.de/dokumente/N-14022.html