Wavelength conversion apparatus

Details Wavelength conversion apparatus Wavelength conversion apparatus

1993-08-27

1995-04-25

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Nonlinear device

372101, 372100, H01S 310

Patent

active

054105609

ABSTRACT:
A wavelength conversion apparatus using a nonlinear optical element for generating light different in wavelength from an incident fundamental wave. This apparatus utilizes a nonlinear optical element or a focusing lens element in the conversion apparatus to spatially separate light generated by the nonlinear optical element from the fundamental wave. For example, a cylindrical lens 13 for adjusting the size of the light beam is placed at least behind a wavelength conversion nonlinear optical crystal 12, and a light beam from the crystal 12 is passed through the lens near its edge, at a distance, from the central axis of the lens 13. The light beam is subject to a prism effect, and the generated beam B is separated from fundamental wave A as a result of the refractive index dispersion of the lens 13 and is transmitted.

REFERENCES:
patent: 4642809 (1987-02-01), Petheram
patent: 4739507 (1988-04-01), Payer et al.
patent: 5144630 (1992-09-01), Lin
patent: 5173799 (1992-12-01), Tanuma
patent: 5235605 (1993-08-01), Rines et al.
patent: 5285460 (1994-02-01), Ueda et al.
patent: 5321718 (1994-06-01), Waarts et al.

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