Optical device and formation of optical waveguide using light-in

Details Optical device and formation of optical waveguide using light-in Optical device and formation of optical waveguide using light-in

1999-06-15

2000-11-28

Lee, John D.

Optical waveguides

Optical fiber waveguide with cladding

65386, 65388, 65389, 65392, 385129, G02B 610

Patent

active

061545937

ABSTRACT:
A glass 1 is irradiated with a focused pulsed laser beam 2 having a peak power density of 10.sup.5 W/cm.sup.2 or more and a repetition rate of 10 KHz or more. The glass 1 irradiated with the laser beam 2 changes its refractive index at the focal point 4. During the laser beam irradiation, the glass 1 is continuously moved with respect to the focal point of the pulsed laser beam 2 or continuously scanned with the focused laser beam 2, so as to form the refractive index changed region (i.e. an optical waveguide 5) with a predetermined pattern. The glass 1 in which the optical waveguide 5 will be formed may be any kind of glass having high transparency.

REFERENCES:
patent: 3542536 (1970-11-01), Flam et al.
patent: 4022602 (1977-05-01), Pavlopoulos
patent: 4090776 (1978-05-01), Bernal et al.
patent: 4411678 (1983-10-01), Arai
patent: 4710605 (1987-12-01), Presby
patent: 5136677 (1992-08-01), Drexhage et al.
patent: 5620496 (1997-04-01), Erdogan et al.

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