G - Physics – 01 – B
Patent
G - Physics
01
B
33/53, 88/97.6
G01B 11/26 (2006.01) G01M 11/00 (2006.01)
Patent
CA 1312195
ABSTRACT OF THE DISCLOSURE Apparatus for measuring the endface angle of a cleaved optical fibre includes a light source for injecting optical energy into that end of the optical fibre opposite to that whose endface angle is to be measured. Means are provided for tapping optical energy passing along the optical fibre in both directions. Photodetectors measure the signal strength of the optical energy tapped from the optical fibre in both directions. The ratio of these measured signal strengths is compared with a known relationship between endface angles and the ratio of said measured signals to provide a measure of the endface angle.
586932
Harper Jonathan Slater
Hornung Stephen
Mallinson Stephen Robert
British Telecommunications Public Limited Company
G. Ronald Bell & Associates
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