Optical fiber coupler including refractive means for producing a

Details Optical fiber coupler including refractive means for producing a Optical fiber coupler including refractive means for producing a

1988-02-25

1989-05-30

Sikes, William L.

350 9610, 350 9615, 350 9620, 350 9622, 350432, 350413, 350436, G02B 632, G02B 300, B29D 1318

Patent

active

048344842

ABSTRACT:
A cuspate lens is disclosed having a slope magnitude which decreases from a maximum at a central cusp to a minimum at the periphery. A radially symmetric version of the lens can focus light into a ring, or produce an annular beam. Also disclosed are a fiber optic coupler and an optical slip ring using the cuspated lenses or other refractive devices capable of producing an annular beam of light, such as axicons or eccentric lenses.

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Speer et al., "The Diversity of Fiber Optic Rotary Connectors (Slip Rings)", SPIE vol. 839, Components for Fiber Optic Applications II (1987) pp. 122-128.
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