Optical Time Domain Reflectometer with a Laser Diode Operating as Light Emitter/Photodetector
- 1 February 1985
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 24 (2A) , L135
- https://doi.org/10.1143/jjap.24.l135
Abstract
A new optical time domain reflectometer is proposed that uses a semiconductor laser diode (LD) as a pulse emitter and a photodetector. By employing LDs with center wavelengths of 1.31 and 1.56 µm, fault location lengths longer than 10 km were attained in both wavelengths for a graded-index multimode fiber.Keywords
This publication has 4 references indexed in Scilit:
- 1.55 μm OTDR for single-mode optical fibre longer than 110 kmElectronics Letters, 1984
- Ultra-long-range OTDR in single-mode fibres at 1.3 μmElectronics Letters, 1983
- Long-range backscattering experiments in single-mode fibersOptics Letters, 1981
- Fiber waveguides: a novel technique for investigating attenuation characteristicsApplied Optics, 1976