Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1994-07-29
1996-01-23
Turner, Samuel A.
Optics: measuring and testing
By particle light scattering
With photocell detection
385 12, G01B 902
Patent
active
054869161
ABSTRACT:
Apparatus and methods for detecting when the birefringent axes of two polarization preserving fibers have their ends oriented into a position to locate the respective axes at 45 degrees. A fusion splicer and a heating controller for the fiber sensing coil are added to a reciprocal interferometer to produce a predetermined pattern of percent light intensity versus time in the returned light, when the axes are properly aligned for fusing. A computer may control the automatic making of depolarizers by this invention.
REFERENCES:
patent: 4468085 (1984-08-01), Papuchon et al.
patent: 5329349 (1994-12-01), Patterson et al.
Jones Mark E.
Michal Ronald J.
Steele James R.
Caldwell Wilfred G.
Kirk James F.
Litton Systems Inc.
Martine Chester E.
Merlino Amanda
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