Optical waveguide board and optical module

Details Optical waveguide board and optical module Optical waveguide board and optical module

Filed on

2005-08-23

Date issued

2005-08-23

Examiner

Lee, Diane I. (Department: 2876)

Patent Class

Optical waveguides

SubClass

Integrated optical circuit

Other Related Categories

C385S129000

Type

Reexamination Certificate

Status

active

Patent number

06934429

Description

ABSTRACT:
An optical waveguide board is provided which includes a substrate, an optical path changing unit being formed on the substrate used to change a direction of an optical path of incident light from a direction being vertical to a surface of the substrate to a direction being horizontal to the surface of the substrate and to condense a luminous flux and an optical waveguide being formed on the substrate to carry out multi-mode transmission of a luminous flux fed from the optical path changing unit wherein, based on a spread angle of the luminous flux formed by the optical path changing unit, mainly light components to be transmitted in a zero-order mode to a three-order mode only, out of various kinds of modes for the multi-mode transmission, is transmitted through the optical waveguide.

REFERENCES:
patent: 6516115 (2003-02-01), Fujita et al.
patent: 6625352 (2003-09-01), Chang
patent: S59-166219 (1984-11-01), None
patent: 7-120629 (1995-05-01), None
patent: H11-326662 (1999-11-01), None
patent: 2000-29531 (2000-02-01), None
patent: 2000-111754 (2000-04-01), None
patent: 2000-241672 (2000-09-01), None
patent: 2000-141965 (2001-05-01), None
patent: 2001-174671 (2001-06-01), None

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