Patent ID: 6785307
Filing Date: 2004-08-31
Classification: H01S

Abstract:
A method for the self-calibration of a tunable, diode pumped solid state laser in which the frequency or the wavelength of the laser radiation of the fundamental frequency and/or doubled frequency is changed, the method comprising:tuning at least one optical element arranged in the cavity to traverse a maximum possible tuning range in a continuous manner by changing the optical cavity length by a piezo-actuator or Brewster window over the total amplification bandwidth of the laser-active material; recording and storing performance curves of the at least one optical element during the step of tuning, the performances curves indicating the output power of the laser; generating or deriving a tuning function for the at least one optical element from the performance curves by a microcontroller or computer; and adjusting an optimum working point for the at least one optical element for maximum suppression of side modes by a digital or analog regulator with the help of a learning curve or learning characteristic derived from the performance curves.