Title:
OPTICAL MULTIPLEXER&sol DEMULTIPLEXER
Document Type and Number:
WIPO Patent Application WO/2004/049027
Kind Code:
A1
Abstract:
An optical multiplexer&sol demultiplexer comprising a diffraction grating, having a short forcal length, and capable of multiplexing demultiplexing light of a narrow wavelength interval. In the optical multiplexer&sol demultiplexer, a plurality of output waveguide groups are connected to one end face of a slab waveguide with an input waveguide group connected thereto, a diffraction grating with grating grooves having a plurality of reflecting surfaces blazed depending on the respective arrangement directions of the plurality of output waveguide groups is disposed on the other end face of the slab waveguide, and the arrangement of the output waveguide groups are determined so that the diffracted lights of different wavelengths from each other reflected by the reflecting surfaces of the diffraction grating reach the respective output waveguides of the plurality of output waveguide groups.
Inventors:
NARUSE TERUKAZU (JP)
Application Number:
PCT/JP2002/012309
Publication Date:
June 10, 2004
Filing Date:
November 26, 2002
Export Citation:
Assignee:
FUJITSU LTD (JP)
NARUSE TERUKAZU (JP)
NARUSE TERUKAZU (JP)
International Classes:
G02B6/34; (IPC1-7): G02B6/28; G02B6/12
Domestic Patent References:
| WO1998000751A1 | 1998-01-08 |
Foreign References:
| JPH063709A | 1994-01-14 | |||
| JPH0333805A | 1991-02-14 |
Attorney, Agent or Firm:
Sasajima, Fujio (19-5 Toranomon 1-chom, Minato-ku Tokyo, JP)
Download PDF:
Previous Patent: GENERIC WAVEGUIDE COMPONENT FOR PLANAR LIGHTWAVE CIRCUITS
Next Patent: PORTABLE MICROSCOPE
Next Patent: PORTABLE MICROSCOPE