title: Study of frequency stabilization for electro-optical Q-switched radio-frequency-excited waveguide CO2 laser using build-up time method.
abstract: An electro-optical Q-switched RF-excited Z-fold CO(2) waveguide laser was designed, which can output a Q-switched laser and a cavity-dumped laser synchronously. The build-up time method is presented to stabilize the laser frequency. A closed-loop control system was designed to keep the laser oscillating at the peak of the gain curve by measuring the pulse build-up time continuously and controlling the cavity length. In the experiment, the variations for the pulse build-up time and cavity-dumped laser output power with time were recorded in a period of time. The frequency fluctuation is less than ±16 MHz.
authors.affiliation: Information Optoelectronics Research Institute, Harbin Institute of Technology at Weihai, Weihai, China.
authors.forename: Yanchao
authors.initials: Y
authors.lastname: Zhang
authors.forename: Zhaoshuo
authors.initials: Z
authors.lastname: Tian
authors.forename: Zhenghe
authors.initials: Z
authors.lastname: Sun
authors.forename: Lili
authors.initials: L
authors.lastname: Wang
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang