Optical waveguides – Having particular optical characteristic modifying chemical... – Of waveguide core
Patent
1995-12-26
1997-12-02
Palmer, Phan T. H.
Optical waveguides
Having particular optical characteristic modifying chemical...
Of waveguide core
385123, 385129, G02B 104, G02B 616
Patent
active
056945132
ABSTRACT:
A waveguide device comprising at least a waveguiding layer, a cladding layer and, optionally, an adhesion-enhancing layer is disclosed. By using specific fluorinated polyimides as materials for each of the layers of the waveguide device, the process for producing the waveguide device is simplified, the production cost is reduced, and the flexibility is imparted to the waveguide device, which are not achieved in a quartz-type waveguide. Also, a single mode, a low loss at 1.3 micron band and a high moisture-resistance which are not achieved by conventional plastic-type waveguide are possible.
REFERENCES:
patent: 5108201 (1992-04-01), Matsurra et al.
Macromolecules, vol. 25, No. 21, 1992, Easton, U.S. pp. 5858-5860 bu Shinji et al. entitled "Perfluorinated Polyimide Synthesis" Oct., 1992.
Hoechst Aktiengesellschaft
Palmer Phan T. H.
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