Periodic Error Compensation in Fiber-coupled Heterodyne Interferometry
Sign Up to like & getrecommendations! Published in 2017 at "Procedia Manufacturing"
DOI: 10.1016/j.promfg.2017.07.015
Abstract: Abstract This paper extends the application of a novel wavelet-based periodic error compensation algorithm in fiber-coupled heterodyne interferometry. In this case, the amplitudes of periodic error may be fluctuating and traditional digital algorithms are not… read more here.
Keywords: error; error compensation; periodic error; heterodyne interferometry ... See more keywords
Modal analysis using camera-based heterodyne interferometry and acoustic excitation
Sign Up to like & getrecommendations! Published in 2019 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2019.04.005
Abstract: Abstract Vibration modal analysis is a significant technique in dynamic analysis that has been widely used for structural damage detection and health monitoring. To accurately identify the modal parameters of a structure, a non-destructive method… read more here.
Keywords: modal analysis; vibration; analysis; heterodyne interferometry ... See more keywords
Constant amplitude modulation heterodyne interferometry.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.456944
Abstract: Laser interferometer with picometer precision is a key technology in the space gravitational wave detection. Many interferometry strategies have been put forward for the multiple purposes in the past 10 yr. We propose a new… read more here.
Keywords: constant amplitude; amplitude modulation; heterodyne interferometry; interferometry ... See more keywords
High-speed real-time heterodyne interferometry using software-defined radio.
Sign Up to like & getrecommendations! Published in 2018 at "Applied optics"
DOI: 10.1364/ao.57.000217
Abstract: This paper describes the design and performance of a phase demodulation scheme based on software-defined radio (SDR), applied in heterodyne interferometry. The phase retrieval is performed in real time by means of a low-cost SDR… read more here.
Keywords: software defined; defined radio; real time; heterodyne interferometry ... See more keywords
Synthetic model of nonlinearity errors in laser heterodyne interferometry.
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DOI: 10.1364/ao.57.003890
Abstract: The development of laser heterodyne interferometry raises the requirements of measurement resolution and accuracy. However, periodic nonlinearity errors mainly suppress the accuracy of laser heterodyne interferometry. Based on the generation mechanism of nonlinearity errors, the… read more here.
Keywords: laser heterodyne; errors laser; nonlinearity errors; heterodyne interferometry ... See more keywords
Multi-axis heterodyne interferometry at MHz frequencies: a short-arm measurement demonstration for LISA with off-the-shelf hardware.
Sign Up to like & getrecommendations! Published in 2019 at "Applied optics"
DOI: 10.1364/ao.58.006346
Abstract: We report the design, construction, and operation of a multi-axis heterodyne interferometry (MAHI) system operating at MHz heterodyne frequencies, which provides a testbed for technologies to be used in the Laser Interferometer Space Antenna (LISA)… read more here.
Keywords: multi axis; mhz frequencies; heterodyne; axis heterodyne ... See more keywords
Narrow laser-linewidth measurement using short delay self-heterodyne interferometry.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.455028
Abstract: Delayed self-heterodyne interferometry is a commonly used technique for the measurement of laser linewidth. It typically requires the use of a very long delay fiber when measuring narrow linewidth (especially linewidths in the kHz-range) lasers.… read more here.
Keywords: laser linewidth; heterodyne interferometry; delay; self heterodyne ... See more keywords