Rotary variable optical tap

Details Rotary variable optical tap Rotary variable optical tap

1990-08-28

1992-09-08

Lee, John D.

Optical waveguides

With optical coupler

Particular coupling structure

385 39, 385421, G02B 626

Patent

active

051465191

ABSTRACT:
An apparatus for selectively transmitting input optical signals carried on input optical fibers to output optical fibers. A three refractive index tapered wave guide structure is bent and maintained in the bent state. This structure is, thereafter, rotated in the bent state. The coupling characteristics are tunable based on the degree of rotation.

REFERENCES:
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patent: 4759597 (1988-07-01), Lemonde
patent: 4763977 (1985-01-01), Kawasaki et al.
patent: 4834488 (1989-05-01), Lee
patent: 4896935 (1990-01-01), Lee
patent: 4931076 (1990-06-01), Berkey
patent: 4948217 (1990-08-01), Keck et al.
patent: 4989946 (1991-02-01), William et al.
patent: 4991922 (1991-02-01), Dahlgren
patent: 5017206 (1991-05-01), Miller et al.
patent: 5058979 (1991-10-01), Yamauchi et al.
Applied Optics, Nov., No. 21, New York, N.Y., USA, Control of Wavelength Selectivity of Power Transfer in Fused Biconical Monomode Directional Couplers.

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