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Design of a long-range single-mode OTDR
The design of a high-performance single-mode optical time-domain reflectometer (OTDR) is discussed. The approach uses a low-noise receiver with a p-i-n diode detector and transimpedance amplifier together with multichannel digital averaging. A dynamic range of 30 dB one way at 1.3 μm is demonstrated with a laser diode source, and with a Nd:YAG laser source the dynamic range is 41 dB one way.
IEEE Journal of Lightwave Technology (1985) Vol.3(1) pp.39-46
Publisher′s URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1074166&tag=1
Copyright University of Southampton 2006