Optical waveguides – Optical fiber waveguide with cladding
Reexamination Certificate
2006-10-31
2006-10-31
Pak, Sung (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
C065S399000, C065S426000
Reexamination Certificate
active
07130513
ABSTRACT:
A method produces a glass body that contains a reduced amount of OH groups in the metallic-oxide-containing glass layer and that has a reduced amount of transmission loss due to OH groups when the glass body is transformed into an optical fiber. The production method produces an optical glass body. An optical fiber contains the optical glass body in at least one part of its region for guiding a lightwave. The production method includes the following steps: (a) introducing into a glass pipe a gas containing an organometallic compound and a glass-forming material; (b) decomposing the organometallic compound into an organic constituent and a metallic constituent; (c) heating and oxidizing the metallic constituent so that produced glass particles containing a metallic oxide are deposited on the inner surface of the glass pipe to form a glass-particle-deposited layer; and (d) consolidating the deposited layer to form a metallic-oxide-containing glass layer.
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Haruna Tetsuya
Ishikawa Shinji
Katayama Tetsutarou
Taira Nobuyuki
Taru Toshiki
Petkovsek Daniel
Sumitomo Electric Industries Ltd.
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