ABSTRACT
The experiment for research on the hyperfine structure of I2 absorption lines with third harmonic frequency stabilization in Nd: YVO4-KTP ring laser has been done. The hyperfine structures of two lines have been observed and the results are comparable with the theoretical calculations. One of the two lines is R(70) 36-1 is the transition of the excited state.
Subject(s)
Iodine/chemistry , Lasers, Solid-State , Spectrum Analysis/methods , Algorithms , Reproducibility of Results , Spectrum Analysis/instrumentationABSTRACT
An investigation of relaxed alignment tolerance in monolithic ring lasers is presented. It was found that the relaxed alignment tolerance is strongly dependent on the out-of-plane angle. A preferred region for the out-of-plane angle is proposed. In this region the resonator has greatly relaxed alignment tolerances, and the unidirectional operation can be obtained under a much-lower magnetic field. Two lasers have been constructed in the region, and satisfactory performance was found, in good agreement with the theoretical analysis.
