Optical waveguides – With optical coupler
Patent
1993-10-21
1997-04-08
Bovernick, Rodney B.
Optical waveguides
With optical coupler
385 2, 385 23, 385 19, 385 40, 385140, 385 17, G02B 636
Patent
active
056196008
ABSTRACT:
A near-field photon tunneling device consisting of a plurality of optical waveguides, such as optical fibers, arranged in juxtaposition with a variable tunnel gap through which photons from at least one of said optical fibers can be caused to tunnel, and wherein the tunnel gap is filled with a metal that is liquid at room temperature or at moderately elevated temperature. The width of the tunnel gap and the corresponding thickness of the liquid metal layer is remotely controllable. The control mechanisms for the width of the gap include optical means, piezo-electric elements and temperature sensitive means. The devices include optical couplers of the head-on and side-on types, optical modulators and switches, as well as display units.
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patent: 4387954 (1983-06-01), Beasley
patent: 4712866 (1987-12-01), Dyott
patent: 5283852 (1994-02-01), Gibler et al.
Digonnet et al "Analysis of a Tunable single mode optical fiber coupler", IEEE Jour. of Quantum Electronics, vol. QE-18, No. 4, Apr. 1982, pp. 746-754.
Fawcett et al, "In-line fiber-optic intensity modulator using electro-optic polymer", Electronics Letters, 28, No. 11, May 1992, pp. 985-986.
Bovernick Rodney B.
International Business Machines - Corporation
Sanghavi Hemang
Trepp Robert M.
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