Method of and apparatus for measuring transverse moments of an e

Details Method of and apparatus for measuring transverse moments of an e Method of and apparatus for measuring transverse moments of an e

1985-09-20

1987-05-05

Wan, Gene

Optics: measuring and testing

For optical fiber or waveguide inspection

G01N 2100

Patent

active

046627448

ABSTRACT:
A method and an apparatus wherein a light beam is passed through a slit oscillating with respect to the beam, and a periodic signal is obtained from the beam portion traversing the slit. The periodic signal is split into its spectral components. Moment values are derived from the values of the amplitudes of such components.

REFERENCES:
patent: 4472630 (1984-09-01), Schoen
Article entitled "Fourth International Conference on Integrated Optics and Optical Fiber Communication", Jun. 27-30, 1983, pp. 40-41.
Electronic Letters--11, Dec., 1981--vol. 17, No. 25, pp. 958-960.
Electronic Letters--25, Jun., 1981--vol. 17, No. 13, pp. 458-460.

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