Generation of parallel second harmonic light rays using an optic

Details Generation of parallel second harmonic light rays using an optic Generation of parallel second harmonic light rays using an optic

1989-05-09

1991-09-10

Sikes, William L.

Optical: systems and elements

Optical frequency converter

Harmonic generator

358122, 358141, G02B 602, G02B 616

Patent

active

050468170

ABSTRACT:
An arrangement for generating light at a second harmonic of an input light at a fundamental frequency/wavelength. Light at the fundamental frequency/wavelength is generated by a laser and impinges upon an input end of an optical fiber. The optical fiber has a non-linear optical characteristic and generates a second harmonic of the input light. The second harmonic which exits the fiber has an axisymmetrical and conical equiphase wave surface. A collimator lens collimates the second harmonic and parallel light rays are produced on the output side of the lens.

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patent: 4815807 (1989-03-01), Kaneko et al.
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