Method for Measuring Laser Frequency Noise

We have analyzed the characteristic features and problems in the major approaches to measurement of laser frequency noise. We propose a method in which we use an unbalanced fiber-optic interferometer, generation at the optical system output of a signal for a subcarrier of the frequency, phase-modula...

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Bibliographic Details
Published in:	Journal of applied spectroscopy Vol. 86; no. 6; pp. 1106 - 1112
Main Authors:	Liokumovich, L. B., Kostromitin, A. O., Ushakov, N. A., Kudryashov, A. V.
Format:	Journal Article
Language:	English
Published:	New York Springer US 2020 Springer Springer Nature B.V
Subjects:	Analysis Analytical Chemistry Atomic/Molecular Structure and Spectra Equipment and supplies Fiber optics Lasers Measurement Measuring instruments Methods Noise measurement Optical fibers Physics Physics and Astronomy Subcarriers Variations coherent laser source laser frequency noise laser noise spectrum fiber-optic interferometer
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Summary:	We have analyzed the characteristic features and problems in the major approaches to measurement of laser frequency noise. We propose a method in which we use an unbalanced fiber-optic interferometer, generation at the optical system output of a signal for a subcarrier of the frequency, phase-modulated by fluctuations in the laser frequency, and measurement of the spectrum for this signal. The proposed approach is distinguished by relative simplicity and accessibility, and does not require using uncommon specialized instruments and complicated specific procedures.
ISSN:	0021-9037 1573-8647
DOI:	10.1007/s10812-020-00947-x