Ultra-long-range OTDR in single-mode fibres at 1.3 μm

23 June 1983

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

Vol. 19 (13) , 463-464
https://doi.org/10.1049/el:19830315

Abstract

A single-mode optical time-domain reflectometer (OTDR) operating at a wavelength of 1.3 μm with a dynamic range in excess of 26 dB one way is reported. The equipment incorporates a semiconductor laser source and a new low-noise optical receiver design utilising a PIN diode detector and a transimpedance amplifier.

Keywords

SEMICONDUCTOR LASER SOURCE
OPTICAL TIME-DOMAIN REFLECTOMETER
1.3 MICRON WAVELENGTH
OPTICAL RECEIVER
OPTICAL TESTING
OTDR
SINGLE-MODE FIBRES
P-I-N DIODE DETECTOR
TRANSIMPEDANCE AMPLIFIER

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