Method and apparatus for thermally reducing coherence/polarizati

Details Method and apparatus for thermally reducing coherence/polarizati Method and apparatus for thermally reducing coherence/polarizati

1997-06-05

1999-07-13

Kim, Robert H.

Optics: measuring and testing

For optical fiber or waveguide inspection

G01N 2100

Patent

active

059234148

ABSTRACT:
Apparatus (OTDR) for accurately locating and measuring the optical parameters and characteristics of fiberoptic cables which reduces the adverse effects of coherence noise without effecting the stability and repeatability of the acquired locating and measuring information.

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"Fading Noise Reduction in Coherent OTDR", Izumita et al., IEEE Photonics Technology Letters, vol. 4, No. 2, Feb. 1992, pp. 201-203.
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"High Dynamic Range, Low Fading Noise OTDR . . . ", Furukawa et al., 17th ECOC, 1991, part 1, pp. 81-84.

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