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Patent Searching and Data


Title:
OPTICAL WAVEGUIDE
Document Type and Number:
Japanese Patent JP2001228344
Kind Code:
A
Abstract:

To select a glass material suitable for providing an excellent optical waveguide with small propagation losses by condensing a laser beam having a high peak output value into the inside of the glass.

In an optical waveguide 6 which has a continuous refractive index change area formed in the glass material by condensing the laser beam 2 having an amount of energy for causing a photoinduced refractive index change in the glass material 1 and displacing a condensing point 4 relatively in the glass material 1, glass containing Al2O3 is used as the glass material. It is more desirable for the glass to contain Al2O3 and SiO2.


Inventors:
YAMAGUCHI ATSUSHI
HIRAO KAZUYUKI
Application Number:
JP2000000040435
Publication Date:
August 24, 2001
Filing Date:
February 18, 2000
Export Citation:
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Assignee:
NIPPON SHEET GLASS CO LTD
HIRAO KAZUYUKI
International Classes:
G02B6/12; (IPC1-7): G02B6/12
Attorney, Agent or Firm:
大野 精市