Patent ID: 6775054
Filing Date: 2004-08-10
Classification: G02F

Abstract:
A device for optical parametric amplification, comprising:a nonlinear optical medium oriented between and collinear with a first mirror, M1, and a second mirror M2, with a laser beam path, L1, between mirror M1 and mirror M2; a third mirror M3, with a laser beam path, L2, between mirror M2 and mirror M3; a fourth mirror M4, with a laser beam path, L3, between mirror M3 and mirror M4, and a laser beam path, L4, between mirror M4 and M1, with an optical plane formed by said laser beam path L1 and laser beam path L2 approximately orthogonal to an optical plane formed by said laser beam path L1 and laser beam path L4, wherein a resonant optical cavity is formed for optical parametric amplification; and a waveplate collinearly oriented in the laser beam path selected from the group consisting of laser beam path L2 and laser beam path L4.