摘要
The self-mixing interferometer is used to investigate the characteristics of resonant frequency of the microresonator, which is excited by a sinusoidally driven loud-speaker. The detected self-mixing signal is processed by the phase reconstruction method. The lst-order resonant frequency of the microresonator is measured to be 4.437 kHz with full-width at half-maximum （FWHM） of 0.13 kHz. The measurement results are verified by the sinusoidal phase modulating （SPM） interferometer.
The self-mixing interferometer is used to investigate the characteristics of resonant frequency of the microresonator, which is excited by a sinusoidally driven loud-speaker. The detected self-mixing signal is processed by the phase reconstruction method. The lst-order resonant frequency of the microresonator is measured to be 4.437 kHz with full-width at half-maximum （FWHM） of 0.13 kHz. The measurement results are verified by the sinusoidal phase modulating （SPM） interferometer.
基金
supported by the National Natural Science Foundation of China(No.60578051)
the Key Basic Research Program of Science and Technology Commission of Shanghai Municipality(No. 07JC14056).
