Wavelength conversion device

Details Wavelength conversion device Wavelength conversion device

1990-10-05

1994-10-11

Shafer, Ricky D.

Optical: systems and elements

Optical frequency converter

359328, 372 22, H03F 700, G02F 135

Patent

active

053552466

ABSTRACT:
A change in the wavelength of a laser beam is achieved by causing the beam to have a conical wavefront and applying it to a nonlinear crystal so that the beam converges along the center axis producing an output beam of a different wavelength. The conical wavefront is achieved in wavefront conversion means by use of lenses, mirrors and crystals with conical surfaces. Adjustability is provided by diverging the beam first and then converging it, with adjustment in the spacing between the divergence means and convergence means of a wavefront conversion means.

REFERENCES:
patent: 3663090 (1972-05-01), Miller
patent: 4909595 (1990-03-01), Okazaki et al.
patent: 4972422 (1990-11-01), Tatsuno
patent: 5005938 (1991-04-01), Itoh et al.
patent: 5029976 (1991-07-01), Goto
patent: 5046817 (1991-09-01), Uenishi et al.
patent: 5173799 (1992-12-01), Tanuma

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