G - Physics – 02 – B
Patent
G - Physics
02
B
18/103, 88/97.2
G02B 6/24 (2006.01) C03B 37/012 (2006.01) G02B 6/10 (2006.01)
Patent
CA 1234713
FORM BIREFRINGENT SINGLE MODE FIBER AND METHOD OF FABRICATION ABSTRACT OF THE DISCLOSURE A form birefringent optical fiber has a core formed of a plurality of layers of dielectrics having different refractive indices. The dielectric layers form a composite structure having different refractive indices for light of different polarizations. The differing refractive indices cause the polarization states of light guided by the fiber to be non-degenerate so that energy ordinarily will not couple from one polarization to the other. The fiber includes a cladding that may have a refractive index energy less than both core indices to provide a polarization maintaining fiber or greater than or equal to one of the core indices to provide a polarizing fiber. The method of fabrication of the layered core form birefringent optical fiber includes forming a structure of a plurality of layers of the dielectrics, heating the structure to form a monolith, stretching the monolith to form the fiber core, and adding the cladding to the core.
492738
Chang Chin-Lung
Feth John R.
Furlong Steven C.
Gowling Lafleur Henderson Llp
Litton Systems Inc.
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