Title:
アレイ導波路回折格子型光合分波器
Document Type and Number:
Japanese Patent JP4190733
Kind Code:
B2
Abstract:
An arrayed waveguide grating type optical multiplexer/demultiplexer includes input waveguides, an input-side slab waveguide, an arrayed waveguide diffraction grating, an output-side slab waveguide, and output waveguides. A junction between each input waveguide and the input-side slab waveguide is tapered such that the end portion of the input waveguide gradually widens in the width direction of the path toward the input-side slab waveguide, and includes two separate small-width waveguide portions arranged separately from the end portion of the input waveguide and extending in a line with taper of the tapered end portion, and a single large-width waveguide portion arranged separately from the small-width waveguide portions.
Inventors:
Takeshi Nakajima
Hiroyuki Koshi
Naoki Hashizume
Hiroyuki Koshi
Naoki Hashizume
Application Number:
JP2000566709A
Publication Date:
December 03, 2008
Filing Date:
August 23, 1999
Export Citation:
Assignee:
THE FURUKAW ELECTRIC CO.,LTD.
International Classes:
G02B6/12; G02B6/125; G02B6/34
Domestic Patent References:
| JP7301721A | ||||
| JP8122557A | ||||
| JP10073730A | ||||
| JP4326308A | ||||
| JP6250030A | ||||
| JP10274719A |
Attorney, Agent or Firm:
Takaho Kawawa