Abstract
The emission frequency of an ILGN-202 internal-mirror laser was stabilized. An experimental study was made of the dependences of the power of the orthogonal components of laser radiation on the frequency tuning in the free-running regime. The laser was stabilized by maintaining a definite relationship between the intensities of the components by an automatic frequency control (AFC) system utilizing the method of thermal control of the resonator length. A theoretical study was made of the ultimate short-term frequency instability and an expression was derived for the transfer function of the optimal AFC system. The relative frequency instability found experimentally was 5 ? 10?9 in 15 min when the averaging time was 1 sec and the change in the frequency in 8 h was 10 MHz.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
