Brief Communications

Method for measuring losses due to absorption in nonlinear crystals

P. G. Konvisar, S. R. Rustamov, A. A. Fomichev


Abstract: A new method is suggested for measuring the losses due to absorption in nonlinear crystals capable of generating second harmonics under 90° phase-matching conditions. The method is based on the determination of the difference between the temperature at the center of a crystal (where the laser radiation is concentrated) and on its lateral surface. The temperature at the center is deduced from the generation of the second harmonic.

UDC: 621.378.325

PACS: 42.70.Mp, 42.65.Ky, 78.20.Ci, 07.60.-j

Received: 20.11.1973
Revised: 18.02.1974

 English version: Soviet Journal of Quantum Electronics, 1974, 4:6, 814–815