Transitions in refractive index using electro-optic polymers

Optical waveguides – Miscellaneous

Reexamination Certificate

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C385S129000, C385S050000

Reexamination Certificate

active

10526652

ABSTRACT:
The index of refraction in a length of doped and/or “doped-and-poled” electro-optic polymers is controlled so that a gradual transition from a low Δn to a high Δn, or vice versa, is achieved for use in, for example, a lightguide-to-fiber transition. Multiple methods for creating this gradual transition are disclosed.

REFERENCES:
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patent: 3953620 (1976-04-01), Chandross
patent: 4856859 (1989-08-01), Imoto
patent: 4886538 (1989-12-01), Mahapatra
patent: 5009483 (1991-04-01), Rockwell
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patent: 5837169 (1998-11-01), Rourke
patent: 6081632 (2000-06-01), Yoshimura
patent: 6393172 (2002-05-01), Brinkman
patent: 6393186 (2002-05-01), Deacon
patent: 2003/0108273 (2003-06-01), Kowalczyk et al.
“Two-Dimensional Mode Size Transformation by n-Controlled Polymer Waveguides,” by Ryuoji Inaba et al., Apr. 1988.
“Guest-Host Fluorinated Polyimides for Electro-Optic Applications,” by T.C. Kowalczyk et al., Nov. 1994.

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