Second-harmonic generation in CDA and CD*A

Efficient second-harmonic generation at 5321 Å has been achieved in CDA and CD*A. At 50-MW pump power, loss-free peak power-conversion efficiency of 57 percent and 45 percent were obtained in CDA and CD*A, respectively, The nonlinear optical constant, corrected for multimode fluctuations, was found to bed₃₆(CDA) = d₃₆(CD*A) = (0.96 ± 0.11) × 10⁻⁹ESU, which corresponds tod₃₆(CDA) = d₃₆(CD*A) = 0.92 × d₃₆(KDP). In addition, the temperature variation of the birefringenced(n₂ᵉ - n₁ᵒ)/dThas been measured to be(8.0 ± 0.2) × 10⁻⁶-1for CDA and(7.8 ± 0.2) × 10⁻⁶-1for CD*A.