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US 2013/0278903 A1Published application
Short Pulse Despeckling
OwnerBarret Lippey, John Arntsen +1inventors
InventorsBarret Lippey, John Arntsen, William Brady Beck
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Abstract
An apparatus and method for despeckling that includes a pulsed laser with a pulse width between 1 ps and 10 ns and stimulated Raman scattering light formed in an optical fiber. The stimulated Raman scattering light may be used to form a projected digital image. A second pulsed laser with a wavelength at least 2 nm different may be included and stimulated Raman scattering light formed in a second optical fiber may be combined with the stimulated Raman scattering light formed in the first optical fiber.
Claims20
An optical apparatus comprising:
- a first pulsed laser that generates a first green laser light;
- and
- a first optical fiber;
- wherein the first pulsed laser has a pulse width between 1 ps and 10 ns;
- the first green laser light is focused into the first optical fiber;
- the first optical fiber generates a first stimulated Raman scattering light that enhances an aspect of a light output of the first optical fiber.
3 more elements
An image projection method comprising:
- generating a first green laser light from a first pulsed laser that has a pulse width between 1 ps and 10 ns;
- focusing the first green laser light into a first optical fiber;
- generating a first stimulated Raman scattering light in the first optical fiber;
- and
- using the first stimulated Raman scattering light to enhance an aspect of a light output of the first optical fiber.
2 more elements
Dependencies are inferred from the claim text.