Optical divider for multimode optical fiber systems

Details Optical divider for multimode optical fiber systems Optical divider for multimode optical fiber systems

1990-11-08

1992-02-25

Gonzalez, Frank

Optical waveguides

With optical coupler

Particular coupling structure

385 49, G02B 626

Patent

active

050919865

ABSTRACT:
An optical divider for multimode optical fibers of graded-index (GI) type composed of an optical input section for securing input optical fiber, a branching section including an optical waveguide having rectangular sectional shapes irrespective of a kind of material or a method of fabricating the same and consists of a main optical waveguide and branch waveguide, and an optical output section for securing an array of output optical fibers, wherein the main optical waveguide having a width D and a length M is divided contiguously into N branch optical waveguides, preferably three or more having uniform width W, the optical waveguide having substantially uniform core thickness T is specifically related with the core diameter K of the otpical fiber to fufull the following relational formulas:

REFERENCES:
patent: 4089583 (1978-05-01), Auracher et al.
patent: 4184739 (1980-01-01), d'Auria et al.
patent: 4360248 (1982-11-01), Bickel et al.
patent: 4693544 (1987-09-01), Yamasaki et al.
Optical fibre Coupling to High-Silica Channel Waveguides with Fibre-Guiding Grooves, Electronics Letters, Apr. 12, 1984, vol. 20, No. 8, p. 313, Y. Yamada et al.
Planar gradient-index glass waveguide and its applications to a 4-port branched circuits an star coupler, APPLIED OPTICS, Jun. 1, 1984, vol. 23, No. 11, p. 1745, Eiji Okude et al.
Polymeroptical circuits for multimode optical fiber systems, APPLIED OPTICS, Sep. 15, 1980, vol. 19, No. 18, p. 3124, Takashi Kurokawa et al.

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