A method of measuring laser frequency stability is proposed by using the spectral-hole-burning technique.The power spectra of the measured laser can be recorded as a spectral hole,and the engraving time of the spectra...A method of measuring laser frequency stability is proposed by using the spectral-hole-burning technique.The power spectra of the measured laser can be recorded as a spectral hole,and the engraving time of the spectral hole is mapped into the frequency of the measured laser.Frequency fluctuation can be expressed by spectral hole frequency variation with different engraving times.By using the proposed method,the frequency stability of the external-cavity diode laser is measured to be 2.22×10^(-9) with an integration time of 20 ms.The frequency stability measurement resolution reaches 14 kHz and the repetition rate is 50 Hz.Compared to the conventional method,it avoids the need for a high stability reference laser source.展开更多
基金Supported by the National High-Tech Research and Development Program,the National Natural Science Foundation of China under Grant No 11004152the Funds of Tianjin Education Commission under Grant Nos 20090715,20110704。
文摘A method of measuring laser frequency stability is proposed by using the spectral-hole-burning technique.The power spectra of the measured laser can be recorded as a spectral hole,and the engraving time of the spectral hole is mapped into the frequency of the measured laser.Frequency fluctuation can be expressed by spectral hole frequency variation with different engraving times.By using the proposed method,the frequency stability of the external-cavity diode laser is measured to be 2.22×10^(-9) with an integration time of 20 ms.The frequency stability measurement resolution reaches 14 kHz and the repetition rate is 50 Hz.Compared to the conventional method,it avoids the need for a high stability reference laser source.
