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Your search keyword '"the linewidth measurement of narrow laser"' showing total 3 results
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3 results on '"the linewidth measurement of narrow laser"'

1. A Polarization-Insensitive Recirculating Delayed Self-Heterodyne Method for Sub-Kilohertz Laser Linewidth Measurement

Author

Jing Gao, Dongdong Jiao, Xue Deng, Jie Liu, Linbo Zhang, Qi Zang, Xiang Zhang, Tao Liu, and Shougang Zhang

Subjects
the linewidth measurement of narrow laser, recirculating delayed loop, polarization insensitivity, self-heterodyne of beat spectrum, Applied optics. Photonics, TA1501-1820
Abstract

A polarization-insensitive recirculating delayed self-heterodyne method (PI-RDSHM) is proposed and demonstrated for the precise measurement of sub-kilohertz laser linewidths. By a unique combination of Faraday rotator mirrors (FRMs) in an interferometer, the polarization-induced fading is effectively reduced without any active polarization control. This passive polarization-insensitive operation is theoretically analyzed and experimentally verified. Benefited from the recirculating mechanism, a series of stable beat spectra with different delay times can be measured simultaneously without changing the length of delay fiber. Based on Voigt profile fitting of high-order beat spectra, the average Lorentzian linewidth of the laser is obtained. The PI-RDSHM has advantages of polarization insensitivity, high resolution, and less statistical error, providing an effective tool for accurate measurement of sub-kilohertz laser linewidth.

Published
2021
Full Text
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2. A Polarization-Insensitive Recirculating Delayed Self-Heterodyne Method for Sub-Kilohertz Laser Linewidth Measurement

Author

Xiang Zhang, Shougang Zhang, Tao Liu, Dongdong Jiao, Gao Jing, Qi Zang, Liu Jie, Xue Deng, and Linbo Zhang

Subjects
Heterodyne, Materials science, the linewidth measurement of narrow laser, recirculating delayed loop, Beat (acoustics), 02 engineering and technology, 01 natural sciences, law.invention, 010309 optics, Laser linewidth, 020210 optoelectronics & photonics, Optics, law, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Applied optics. Photonics, Radiology, Nuclear Medicine and imaging, polarization insensitivity, Faraday rotator, Instrumentation, Voigt profile, business.industry, Laser, Polarization (waves), Atomic and Molecular Physics, and Optics, self-heterodyne of beat spectrum, TA1501-1820, Interferometry, business
Abstract

A polarization-insensitive recirculating delayed self-heterodyne method (PI-RDSHM) is proposed and demonstrated for the precise measurement of sub-kilohertz laser linewidths. By a unique combination of Faraday rotator mirrors (FRMs) in an interferometer, the polarization-induced fading is effectively reduced without any active polarization control. This passive polarization-insensitive operation is theoretically analyzed and experimentally verified. Benefited from the recirculating mechanism, a series of stable beat spectra with different delay times can be measured simultaneously without changing the length of delay fiber. Based on Voigt profile fitting of high-order beat spectra, the average Lorentzian linewidth of the laser is obtained. The PI-RDSHM has advantages of polarization insensitivity, high resolution, and less statistical error, providing an effective tool for accurate measurement of sub-kilohertz laser linewidth.

Published
2021

3. A Polarization-Insensitive Recirculating Delayed Self-Heterodyne Method for Sub-Kilohertz Laser Linewidth Measurement.

Author

Gao, Jing, Jiao, Dongdong, Deng, Xue, Liu, Jie, Zhang, Linbo, Zang, Qi, Zhang, Xiang, Liu, Tao, and Zhang, Shougang

Subjects
LASER measurement, STATISTICAL errors, INTERFEROMETERS
Abstract

A polarization-insensitive recirculating delayed self-heterodyne method (PI-RDSHM) is proposed and demonstrated for the precise measurement of sub-kilohertz laser linewidths. By a unique combination of Faraday rotator mirrors (FRMs) in an interferometer, the polarization-induced fading is effectively reduced without any active polarization control. This passive polarization-insensitive operation is theoretically analyzed and experimentally verified. Benefited from the recirculating mechanism, a series of stable beat spectra with different delay times can be measured simultaneously without changing the length of delay fiber. Based on Voigt profile fitting of high-order beat spectra, the average Lorentzian linewidth of the laser is obtained. The PI-RDSHM has advantages of polarization insensitivity, high resolution, and less statistical error, providing an effective tool for accurate measurement of sub-kilohertz laser linewidth. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

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