Title:
MANUFACTURE OF PLANE-SHAPED OPTICAL WAVEGUIDE
Document Type and Number:
Japanese Patent JPS6291434
Kind Code:
A
Abstract:
A planar lightwave guide with light-conducting core zones in light conducting strips is made by the precipitation out of a gaseous phase onto a substrate a thin, glass-like strata in accordance with a programmed schedule so as to allow a predetermined refractive index curve to be obtained to thereby form a light-conducting core zone and protective sheathing layers adjacent to the core zone. The improvement in the method is characterized in that the precipitation out of the gaseous phase is obtained by application of a heterogeneous reaction and in that after the formation of the light-conducting strips, the refractive index of the core-forming strata is modified in a targeted manner in a lateral marginal region of the strips by diffusing out the doping substance which determines the refractive index curve in the core zones. Subsequently these strips and the substrate are coated with a covering layer of a material having a lower refractive index than that of the core zone material.
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Inventors:
RARUFU TOOMASU KERUSUTEN
URUFUGANGU SHIIFUERUTO
URUFUGANGU SHIIFUERUTO
Application Number:
JP24434286A
Publication Date:
April 25, 1987
Filing Date:
October 16, 1986
Export Citation:
Assignee:
ZEISS CARL FA
International Classes:
C03B8/04; C03B19/14; C03C17/02; G02B6/132; G02B6/13; (IPC1-7): C03B8/00; C03B20/00; C03C17/02; G02B6/12
Domestic Patent References:
| JPS552263A | 1980-01-09 | |||
| JPS5127944A | 1976-03-09 |
Attorney, Agent or Firm:
Akira Matsumoto