EP0477898A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for producing a quartz optical waveguide
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1991-09-25
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Granted: —
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Expires: 2011-09-25
Abstract
Abstract A quartz optical waveguide comprising a support, a quartz glass core part formed on said support and a part which surrounds said core part and has a lower refractive index than that of said core part, wherein said core part and/or a part of said lower refractive index part through which light is guided have a functional material waveguide film containing a functional material, which has a function such as laser amplification or a linear optical effect.
Inventors
- 👤 Sumio C/O Yokohama Works Hoshino
- 👤 Hiroo C/O Yokohama Works Kanamori
- 👤 Masumi C/O Yokohama Works Ito
- 👤 Shinji C/O Yokohama Works Ishikawa
- 👤 Haruhiko C/O Yokohama Works Aikawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 08:12
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/06; H01S3/063; G; G02; G02B; G02B6/00; G02B6/10; G02B6/12; G02B6/13; G02B6/132; G02F; G02F1/00; G02F1/35; G02F1/365
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
64 words
A quartz optical waveguide comprising a support, a quartz glass core part formed on said support and a part which surrounds said core part and has a lower refractive index than that of said core part, wherein said core part and/or a part of said lower refractive index part through which light is guided have a functional material waveguide film containing a functional material.
Claim 2
Dependent Claim
22 words
The quartz optical waveguide according to claim 1, wherein said functional material is a rare earth element having a laser amplification effect.
Claim 3
Dependent Claim
26 words
The quartz optical waveguide according to claim 2, wherein said rare earth metal is at least one selected from the group consisting of Er and Nd.
Claim 4
Dependent Claim
20 words
The quartz optical waveguide according to claim 1, wherein said functional material is a semiconductor having a nonlinear optical effect.
Claim 5
Dependent Claim
35 words
The quartz optical waveguide according to claim 4, wherein said semiconductor is at least one selected from the group consisting of CdS x Se 1-x , x being the range of 0<x<1, PbS and CuCl.
Claim 6
Independent Claim
95 words
A method for producing a functional quartz optical waveguide comprising a support, a core part and a part which surrounds said core part and has a lower refractive index than that of said core part, which method comprises steps of depositing fine particles of a glass by a flame hydrolysis deposition on a support and heating said deposited glass soot to form a transparent glass layer, wherein, at said core part and/or a part of said lower refractive index part, a glass optical waveguide film containing a functional material is formed by a sol-gel method.
References Cited (Backward Citations)
No citation records indexed.
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