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US 9,778,542 B2Granted
High power visible laser with a laser-fabricated nonlinear waveguide
AssigneeDolby Laboratories Licensing Corporation
InventorsGregory David Miller, Gennady Imeshev
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Abstract
Novel methods and systems for waveguide fabrication and design are disclosed. Designs are described for fabricating ridge, buried and hybrid waveguides by a femtosecond pulsed laser. A laser system may combine a diode bar, a wavelength combiner and a waveguide. The waveguide may convert the electromagnetic radiation of an infrared laser into that the visible-wavelength range.
Claims9
A wavelength-converting nonlinear buried waveguide comprising:
- a nonlinear crystal substrate;
- and
- a plurality of laser-fabricated damage tracks in the nonlinear crystal substrate, wherein the plurality of laser-fabricated damage tracks have a crystalline structure different from an undamaged crystalline structure of the nonlinear crystal substrate, the plurality of laser-fabricated damage tracks being arranged in a desired pattern configured to allow formation of an optical mode within an area of the nonlinear crystal substrate substantially delimited by the desired pattern.
Dependencies are inferred from the claim text.