Title:
ARRAY WAVEGUIDE DIFFRACTION GRATING
Document Type and Number:
WIPO Patent Application WO/2005/081022
Kind Code:
A1
Abstract:
An array waveguide diffraction grating in which the area where an array waveguide is installed can be decreased without decreasing the minimum bending radius of curvature of the waveguide. The array waveguide diffraction grating comprises an input-side single-mode waveguide (11), an output-side single-mode waveguide (12), an input-side slab waveguide (13), an output-side slab waveguide (14), an input-side taper waveguide (15), an output taper waveguide (16), a bending array waveguide (inside) (17), a bending array waveguide (outside) (18), and a reflecting structure (19). Light incident on the array waveguide diffraction grating is reflected by the reflecting structure (19) in the waveguide and propagated through the output-side waveguide.
Inventors:
SUZUKI TAKANORI (JP)
TSUDA HIROYUKI (JP)
TSUDA HIROYUKI (JP)
Application Number:
PCT/JP2005/001465
Publication Date:
September 01, 2005
Filing Date:
February 02, 2005
Export Citation:
Assignee:
UNIV KEIO (JP)
SUZUKI TAKANORI (JP)
TSUDA HIROYUKI (JP)
SUZUKI TAKANORI (JP)
TSUDA HIROYUKI (JP)
International Classes:
G02B6/12; G02B6/122; G02B6/34; (IPC1-7): G02B6/12
Foreign References:
| JPH05107420A | 1993-04-30 | |||
| JPH08171110A | 1996-07-02 | |||
| JPH02244105A | 1990-09-28 | |||
| JPH04264506A | 1992-09-21 | |||
| EP0568236A2 | 1993-11-03 | |||
| EP0940698A2 | 1999-09-08 |
Other References:
SUZUKI T. ET AL: "Technical Digest of 3rd International Conference on Optics-photonics Design and Fabrication.", 30 October 2002 (2002-10-30) - 1 November 2002 (2002-11-01), pages 131 - 132
SUZUKI T. ET AL: "The Institute of Electronics, Information and Communication Engineers Gijutsu Kenkyu Hokoku.", vol. 103, no. 606, 21 January 2004 (2004-01-21), pages 55 - 59
SUZUKI T. ET AL: "The Institute of Electronics, Information and Communication Engineers Gijutsu Kenkyu Hokoku.", vol. 103, no. 606, 21 January 2004 (2004-01-21), pages 55 - 59
Attorney, Agent or Firm:
Nakamura, Kazuo (Nakamura Bldg. 2F 50-10, Nishikamata 7-chom, Ota-ku Tokyo 51, JP)
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