Single-mode behaviour of a multimode 1.55 μm laser with a fibre grating external cavity

9 October 1986

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

Vol. 22 (21) , 1132-1134
https://doi.org/10.1049/el:19860776

Abstract

A 1.55 μm DCPBH multimode laser has been made to oscillate in a single longitudinal mode by feedback from a fibre grating which acts as an external cavity for line narrowing and as a frequency-selective component to give single-mode behaviour. Linewidths of less than 10kHz and side-mode rejection ratios of 320 have been achieved.

Keywords

1.55 MICRON
FIBRE GRATING EXTERNAL CAVITY
OSCILLATE
DCPBH
SEMICONDUCTOR LASERS
LINE NARROWING
&GT
10 KHZ LINEWIDTHS
SINGLE-MODE BEHAVIOUR
FREQUENCY-SELECTIVE COMPONENT
FEEDBACK
PLANAR BURIED HETEROSTRUCTURE
MULTIMODE LASER
1.55 MICRON WAVELENGTH
SINGLE LONGITUDINAL MODE
DOUBLE CHANNEL

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