Reliable laboratory transmitter with submegahertz linewidth

13 February 1986

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 22 (4) , 206-207
https://doi.org/10.1049/el:19860144

Abstract

An external-cavity transmitter configuration is introduced using a semiconductor laser at 1.3 μm 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.

Keywords

SEMICONDUCTOR LASER
LASER MODE SELECTION
LINEWIDTH REDUCTION
SEMITRANSPARENT
AU COATING
30 DB SIDEMODE SUPPRESSION
GRIN-ROD LENS
SUBMEGAHERTZ LINEWIDTH
700 KHZ LINEWIDTH
OPTICAL COMMUNICATION EQUIPMENT
EXTERNAL-CAVITY TRANSMITTER CONFIGURATION
1.3 MICRON WAVELENGTH
1.45 MW OUTPUT POWER
SPHERICAL REFLECTOR

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