Patent ID: 6775053
Filing Date: 2004-08-10
Classification: G02F

Abstract:
A high-gain preamplifier based on optical parametric amplification, comprising:a first nonlinear crystal; a second nonlinear crystal operatively connected to said first nonlinear crystal; a first beam relay telescope operatively connected to said first nonlinear crystal and said second nonlinear crystal; a second beam relay telescope operatively connected to said first nonlinear crystal, said second nonlinear crystal, and said first beam relay telescope; a first harmonic beamsplitter operatively connected to said first nonlinear crystal, said second nonlinear crystal, said first beam relay telescope, and said second beam relay telescope; and a second harmonic beamsplitter operatively connected to said first nonlinear crystal, said second nonlinear crystal, said first beam relay telescope, said second beam relay telescope, and said first harmonic beamsplitter.