Macrobend splice loss tester for fiber optic splices with silico

Details Macrobend splice loss tester for fiber optic splices with silico Macrobend splice loss tester for fiber optic splices with silico

1992-06-17

1994-05-24

McGraw, Vincent P.

Optics: measuring and testing

For optical fiber or waveguide inspection

G01N 2184, G01N 2159

Patent

active

053153650

ABSTRACT:
A splice loss tester for optical fiber splices has two light launch stations and a detection station. The light launch stations each have an optical coupling block formed of acrylic or other transparent material, with a concave surface on which an arcuate segment of the fiber is lightly biased by a cylindrical anvil. A photoemitter in optical contact with the coupling block generates light at a suitable wavelength (e.g. 1550 nm). A clear silicon gel layer on the block concave surface can hasten fiber stabilization. The detection station has a similar coupling block and anvil, and a pair of photodetectors to detect light leakage in each of two directions. The light is launched or detected over a substantial arc of the fiber, i.e., about ninety degrees, and the launch and detection units are useful over a wide range of wavelengths.

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patent: 5179275 (1993-01-01), Lieber et al.

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