We report on a novel and general measurement technique to characterize the finesse of optical resonators. The method retrieves the cavity transmission profile coefficient by using an amplitude modulation of the probe beam and a synchronous detection scheme. Both the real and imaginary parts of the transmission profile can be accurately measured. Validation of the method is performed using two different cavity configurations, a linear and a ring resonator, probed by both continuous-wave and mode-locked laser sources. A comparison with respect to conventional cavity-ring-down measurement scheme shows the accuracy of the proposed method.
Accurate Measurement of Optical Resonator Finesse / G. Galzerano, E. Suerra, D. Giannotti, F. Canella, E. Vicentini, S. Cialdi. - In: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT. - ISSN 0018-9456. - 69:11(2020 Nov), pp. 9113717.9119-9113717.9123. [10.1109/TIM.2020.3001369]
Accurate Measurement of Optical Resonator Finesse
E. SuerraSecondo
;S. CialdiUltimo
2020
Abstract
We report on a novel and general measurement technique to characterize the finesse of optical resonators. The method retrieves the cavity transmission profile coefficient by using an amplitude modulation of the probe beam and a synchronous detection scheme. Both the real and imaginary parts of the transmission profile can be accurately measured. Validation of the method is performed using two different cavity configurations, a linear and a ring resonator, probed by both continuous-wave and mode-locked laser sources. A comparison with respect to conventional cavity-ring-down measurement scheme shows the accuracy of the proposed method.Pubblicazioni consigliate
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