Optical waveguide module having main-line waveguide and branch w

Details Optical waveguide module having main-line waveguide and branch w Optical waveguide module having main-line waveguide and branch w

1997-08-29

1999-07-13

Ullah, Akm E.

Optical waveguides

With optical coupler

Particular coupling structure

G02B 626

Patent

active

059238003

ABSTRACT:
An optical waveguide module having a main-line waveguide, which is excellent in optical branching properties, important properties of a bus communication network, and the reproducibility of the above branching properties and is easy to produce, and an optical transmission equipment having the above optical waveguide module. The optical waveguide module having a main-line waveguide which is connected to the optical transmission path and works as part of the optical transmission path and a pair of branch waveguides (21,22) which are unidirectionally branched from the main-line waveguide, the main-line waveguide and the branch waveguides being formed by providing an optically transparent polymer film with a refractive index distribution, a light-receiving device (25) being connected to one (21) of a pair of the branch waveguides, a light-emitting device (26) being connected to the other (22).

REFERENCES:
patent: 4252402 (1981-02-01), Puech et al.
patent: 4684245 (1987-08-01), Goldring
English language abstract of Japanese Patent application 62009305,published on Jan. 17, 1987.
English language abstract of Japanese Patent application 56111819,published Sep. 3, 1981.

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