| abstract |
This application discloses a kind of laser, including optical resonator, the optical resonator includes input terminal and output coupling mirror, and the input terminal is coated with the optical film for penetrating excitation laser and oscillating laser being made to form reflection；It is intracavitary in the optical resonance, laser crystal, polarizing film, electro-optic Q-switched crystal are disposed with along the direction of the input terminal to the output coupling mirror；Wherein, the output coupling mirror is planoconvex lens, and the convex surface of the planoconvex lens is towards the optical resonator.The laser obtains a small number of longitudinal modes even single longitudinal mode laser using the short bore configurations combination plano-convex output coupling mirror of optical resonator and exports, and realizes high repetition frequency using RTP crystal, while laser pulse width can accomplish very narrow (1ns-10ns magnitude).The laser of the application can provide the basic frequency laser of Gao Zhongying, narrow spaces, narrow linewidth, high light beam quality. |