Diode-pumped solid laser - has sepd. nonlinear crystal bonded to piezoceramic vibrator and equipped with antireflection coating on face towards laser crystal similarly coated

摘要

A laser crystal (11) with a mirror coating (S1) on its input face, and a non linear crystal (12) likewise coated (S2) on its output face, are spaced apart within an ovarall length of less than 1 mm to guarantee a resonator mode. The nonlinear crystal (12) is assembled to a piezoceramic modulator (16) excited by a high-frequency generator (17). The facing crystal surfaces have coatings (S3) with antireflecting properties at the wavelengths of the fundamental and laser frequencies and of the pumping diode (14). ADVANTAGE - Extended tuning and modulation of fundamental and frequency-doubled or mixed wavelengths are possible.