Four polarization maintaining optical fiber ferrule and optical

Details Four polarization maintaining optical fiber ferrule and optical Four polarization maintaining optical fiber ferrule and optical

1996-01-30

1997-11-25

Lee, John D.

Optical waveguides

With disengagable mechanical connector

Optical fiber/optical fiber cable termination structure

385 60, G02B 627

Patent

active

056920814

ABSTRACT:
A four polarization maintaining optical fiber ferrule is provided which comprises a cylindrical body with a throughhole at the center into which four polarization maintaining optical fiber elements having polarization maintaining planes are fastened, and at least one angular first reference portion on the outer surface of the cylindrical body of the ferrule, wherein the polarization maintaining planes of at least one pair of polarization maintaining optical fiber elements arranged symmetrically with respect to the central axis of the ferrule are fastened at certain angles with respect to the angular first reference portion. An optical coupler is provided which comprises a cylindrical sleeve, a pair of graded index rod lenses within the sleeve which are separated by a thin film for partially transmitting incident light and reflecting the remainder of the light, and the above-referenced four polarization maintaining optical fiber ferrules positioned at each end of the sleeve.

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Fujikura Co., Ltd., (Fujikura Brochure) Catalogue No. 90073000 D, "Linearly Polarized Optical Fiber Coupler" (no date).

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