Title:
【発明の名称】石英系光導波路の製造方法
Document Type and Number:
Japanese Patent JP2855832
Kind Code:
B2
Abstract:
A quartz optical waveguide comprising a substrate (4), a ridge-form core part (6c) formed on said substrate (4) and a part (6a,6d) which surrounds said core part and has a lower refractive index than that of said core part (6c), wherein a refractive index changes continuously at an interface between said core part and said part having the lower refractive index, which has a decreased transmission loss and a connection loss when connected with an optical fiber.
Inventors:
KANAMORI HIROO
ITO MASUMI
ISHIKAWA SHINJI
AIKAWA HARUHIKO
HOSHINO SUMIO
ITO MASUMI
ISHIKAWA SHINJI
AIKAWA HARUHIKO
HOSHINO SUMIO
Application Number:
JP24879490A
Publication Date:
February 10, 1999
Filing Date:
September 20, 1990
Export Citation:
Assignee:
SUMITOMO DENKI KOGYO KK
International Classes:
G02B6/122; G02B6/13; G02B6/134; (IPC1-7): G02B6/13
Domestic Patent References:
| JP6370205A | ||||
| JP62280810A |
Attorney, Agent or Firm:
Mitsuishi Toshiro