Formation of optical waveguide using high repetition rate...

Details Formation of optical waveguide using high repetition rate... Formation of optical waveguide using high repetition rate...

G - Physics

02

B

G02B 6/13 (2006.01) G02B 6/12 (2006.01)

Patent

CA 2200155

A glass 1 is irradiated with a focused pulsed laser beam 2 having a peak power density of 106 W/cm2 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.

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