Method of forming refractive index distribution in light transmi

Details Method of forming refractive index distribution in light transmi Method of forming refractive index distribution in light transmi

1996-02-23

1997-05-27

Healy, Brian

Optical waveguides

With optical coupler

Input/output coupler

385123, 385131, 385 14, 385147, 4271632, 427164, 359566, 359569, 430 4, 430 5, 430 56, 430 57, G02B 634, G02B 518, B05D 506, G03G 1500

Patent

active

056339666

ABSTRACT:
A method of forming a refractive index distribution in a light transmission path including a core and a cladding layer involves steps of applying a photosensitive material layer to the surface of the cladding layer, forming a mask pattern of the photosensitive material layer through photolithography, and irradiating the light transmission path with an electromagnetic wave having a wavelength not exceeding that of visible light and especially a wavelength of X-rays; through the mask pattern, thereby forming in the core a refractive index fluctuation distribution corresponding to the mask pattern.

REFERENCES:
patent: 4400056 (1983-08-01), Cielo
patent: 5042898 (1991-08-01), Morey et al.
patent: 5048913 (1991-09-01), Glenn et al.
patent: 5066133 (1991-11-01), Brienza
patent: 5104209 (1992-04-01), Hill et al.
patent: 5388173 (1995-02-01), Glenn
patent: 5502786 (1996-03-01), Inniss et al.

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