Wavelength conversion device employing Bessel beams with paralle

Details Wavelength conversion device employing Bessel beams with paralle Wavelength conversion device employing Bessel beams with paralle

1997-10-06

1999-08-24

Lee, John D.

Optical: systems and elements

Optical frequency converter

Parametric oscillator

359326, G02F 139

Patent

active

059431610

ABSTRACT:
A wavelength conversion device employs an axicon lens to form Bessel beams of signal light and pump light, which are directed into an anisotropic nonlinear optical crystal. The signal light and pump light are both polarized parallel to the uniquely determined Z-axis of the anisotropic nonlinear optical crystal, the Z-axis being oriented perpendicular to the beam axis. The axicon lens is configured to refract the signal light and pump light at angles such that a phase matching condition is satisfied in the anisotropic nonlinear optical crystal, and converted light, also polarized parallel to the Z-axis and having a new wavelength, is generated.

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