yi heng-yu, l bai-da, hu xiao-yang, et al. Influence of length misadjustment on metrical precision by cavity ringdown method[J]. High Power Laser and Particle Beams, 2004, 16.
Citation:
yi heng-yu, l bai-da, hu xiao-yang, et al. Influence of length misadjustment on metrical precision by cavity ringdown method[J]. High Power Laser and Particle Beams, 2004, 16.
yi heng-yu, l bai-da, hu xiao-yang, et al. Influence of length misadjustment on metrical precision by cavity ringdown method[J]. High Power Laser and Particle Beams, 2004, 16.
Citation:
yi heng-yu, l bai-da, hu xiao-yang, et al. Influence of length misadjustment on metrical precision by cavity ringdown method[J]. High Power Laser and Particle Beams, 2004, 16.
According to experimental parameters, a theory model is made up to simulate measurement of reflectivity for length misadjustment of ring-down cavity. According to propagation equation of Gaussian beam, the influence of length misadjustment of ringdown cavity on its mode coupling is investigated, and the equation is given for relation between length misadjustment and output power, then the relation between ring-down signal and reflectivity is deduced from output characteristic of optical cavity. Applying this model, it is simulated that ringdown signal changes with length misadjustment of -10~10mm. The relation between metrical precision and length misadjustment is also numerically simulated. The analysis shows that the metrical precision drops rapidly with length misadjustment. To achiev