Optical fibre and optical fibre grating

Details Optical fibre and optical fibre grating Optical fibre and optical fibre grating

1997-09-12

1999-12-28

Lee, John D.

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

385142, 385144, G02B 602

Patent

active

06009222&

ABSTRACT:
An optical fiber comprises a glass core having a core refractive index; a glass primary cladding at least partially surrounding said core, said primary cladding having a primary cladding refractive index lower than said core refractive index; a glass secondary cladding at least partially surrounding said primary cladding, said secondary cladding having a secondary cladding refractive index lower than said core refractive index but higher than said primary cladding refractive index; said glass of said core and said glass of at least part of said primary cladding containing one or more photosensitizing dopants.

REFERENCES:
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patent: 4975102 (1990-12-01), Edahiro et al.
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patent: 5740297 (1998-04-01), Onishi et al.
patent: 5852690 (1998-12-01), Haggans et al.
patent: 5881197 (1999-03-01), Dong et al.
Dong et al, Optical Fibers with Depressed Claddings for Suppression of Coupling into Cladding Modes in Fiber Bragg Gratings, IEEE Photonics Technology Letters, V 9, No. 1, pp. 64-66, Jan. 1997.

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