Method and apparatus for determining ratio of core radius to cla

Details Method and apparatus for determining ratio of core radius to cla Method and apparatus for determining ratio of core radius to cla

1975-12-17

1977-06-07

Corbin, John K.

Optics: measuring and testing

Refraction testing

Prism engaging specimen

250550, 356159, G01B 902, G01B 1108, G01B 1112

Patent

active

040279774

ABSTRACT:
Method and apparatus are disclosed for determining a parameter of a clad optical fiber from the scattering angle at the maximum of a modulation component in a forward far-field scattering pattern produced by directing a monochromatic coherent light beam at the fiber. One such parameter is the ratio between core radius and cladding radius.

REFERENCES:
patent: 3659950 (1972-05-01), Troll et al.
patent: 3709610 (1973-01-01), Kruegle
patent: 3797939 (1974-03-01), Pryor
patent: 3879128 (1975-04-01), Presby
patent: 3925733 (1975-12-01), Moore
patent: 3982816 (1976-09-01), Watkins
Watkins, L. S., "Scattering from Side-Illuminated Clad Glass Fibers for Determination of Fiber Parameters", Jr. of Optical Soc. of America, vol. 64, 6-1974, pp. 767-772.

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