Title:
OPTICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2002/023264
Kind Code:
A1
Abstract:
The spot size of light propagating through a crossing wave-guide (22) is set to be larger than the spot size of light propagating through optical input wave-guides (21a, 21b), optical output wave-guides (23a, 23b) or connection wave-guides (24a, 24b, 25a, 25b).
More Like This:
| WO/2021/086789 | MULTILAYER OPTICAL DEVICES AND SYSTEMS |
| WO/2010/115828 | WAVEGUIDE INTEGRATED PHOTODETECTOR |
| JPS5786821 | PLANE FIBER BLACK LENS |
Inventors:
MITOMI OSAMU
ICHIGI TAKENORI
OSHIMA MASATSUGU
OKUMURA JUN
YAMASHITA MASATAKA
ICHIGI TAKENORI
OSHIMA MASATSUGU
OKUMURA JUN
YAMASHITA MASATAKA
Application Number:
PCT/JP2001/007744
Publication Date:
March 21, 2002
Filing Date:
September 06, 2001
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
G02B6/122; G02B6/125; G02F1/313; (IPC1-7): G02F1/313; G02F1/01; G02B6/12
Foreign References:
| JPS6325631A | 1988-02-03 | |||
| US4776655A | 1988-10-11 | |||
| JPH023025A | 1990-01-08 | |||
| JPH1115028A | 1999-01-22 | |||
| JPS6086530A | 1985-05-16 | |||
| JP2000180646A | 2000-06-30 |
Other References:
MASAKI SOTOYAMA ET AL.: "Netsu hikari douharo kaiseki tougou software no kaihatsu", 1999NEN DENSHI JOHO TSUUSHIN GAKKAI SOUGOU TAIKAI KOUEN RONBUNSHUU ELECTRONICS 1, 1999, pages 309, XP002906775
WANG W.K. ET AL.: "Planar silica-glass optical waveguides with thermally induced lateral mode confinement", JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 14, no. 3, 1996, pages 429 - 436, XP002906776
See also references of EP 1319973A4
WANG W.K. ET AL.: "Planar silica-glass optical waveguides with thermally induced lateral mode confinement", JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 14, no. 3, 1996, pages 429 - 436, XP002906776
See also references of EP 1319973A4
Attorney, Agent or Firm:
Sugimura, Kosaku (2-4 Kasumigaseki 3-chom, Chiyoda-ku Tokyo, JP)
Download PDF:
Previous Patent: VELOCITY MATCHING ELECTRODE STRUCTURE FOR ELECTRO-OPTIC MODULATORS
Next Patent: PHOTOGRAPHING SYSTEM FOR PRODUCING VR EDITING
Next Patent: PHOTOGRAPHING SYSTEM FOR PRODUCING VR EDITING