Long-haul self-mixing interference and remote sensing of a distant moving target with a thin-slice solid-state laser

Otsuka, Kenju

doi:10.1364/ol.39.001069

Cited by 18 publications

(3 citation statements)

References 12 publications

(17 reference statements)

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“…Furthermore, three-channel real time nanometer vibration [59] was successfully developed with three pairs of acoustic optical modulators and a three-channel frequency-modulated wave demodulation circuit, realizing simultaneous independent measurement of three different nanometer-vibrating targets. On the other hand, the vibration of targets placed 2.5 km away through single-mode optical fiber access was successfully measured [60], due to the effective long-haul self-mixing interference.…”

Section: Vibration Sensingmentioning

confidence: 99%

Precision Dimensional Measurements

2019

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Section: Vibration Sensingmentioning

confidence: 99%

Precision Dimensional Measurements

2019

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“…Huang [61] proposed a vibration system extreme points model and self-mixing vibration Furthermore, three-channel real time nanometer vibration [59] was successfully developed with three pairs of acoustic optical modulators and a three-channel frequency-modulated wave demodulation circuit, realizing simultaneous independent measurement of three different nanometer-vibrating targets. On the other hand, the vibration of targets placed 2.5 km away through single-mode optical fiber access was successfully measured [60], due to the effective long-haul self-mixing interference.…”

Section: Vibration Sensingmentioning

confidence: 99%

Frequency-Shifted Optical Feedback Measurement Technologies Using a Solid-State Microchip Laser

et al. 2018

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Since its first application toward displacement measurements in the early-1960s, laser feedback interferometry has become a fast-developing precision measurement modality with many kinds of lasers. By employing the frequency-shifted optical feedback, microchip laser feedback interferometry has been widely researched due to its advantages of high sensitivity, simple structure, and easy alignment. More recently, the laser confocal feedback tomography has been proposed, which combines the high sensitivity of laser frequency-shifted feedback effect and the axial positioning ability of confocal microscopy. In this paper, the principles of a laser frequency-shifted optical feedback interferometer and laser confocal feedback tomography are briefly introduced. Then we describe their applications in various kinds of metrology regarding displacement measurement, vibration measurement, physical quantities measurement, imaging, profilometry, microstructure measurement, and so on. Finally, the existing challenges and promising future directions are discussed.

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“…In this Letter, we propose a method to measure the refractive index of solid material at 1064 nm based on the Nd:YAG laser feedback interferometry. [19] Laser feedback interferometry has been studied for a long time and has been widely used in displacement measurement, [20] velocity measurement, [21] vibration measurement [22] and tomography, [23] etc. This work combines the frequency-shift laser feedback with the quasi-common-path structure to realize simultaneous measurement of refractive index and thickness, which is also an important parameter for characterization of materials in optical devices.…”

mentioning

confidence: 99%

Measurement of Refractive Index Ranging from 1.42847 to 2.48272 at 1064 nm Using a Quasi-Common-Path Laser Feedback System

Tan

Zhang

et al. 2015

Chinese Phys. Lett.

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Wavelength 1064 nm is one of the most widely used laser wavelengths in industries and science. The high-precision measurement of the refractive index of optical materials at 1064 nm is significant for improving the optical design. We study the direct measurement of refractive index at 1064 nm of lasers, including calcium fluoride (CaF2), fused silica and zinc selenide (ZnSe), whose refractive indices cover a large range from 1.42847 to 2.48272. The measurement system is built based on the quasi-common-path Nd:YAG laser feedback interferometry. The thickness can be measured simultaneously with the refractive index. The results demonstrate that the system has absolute uncertainties of ∼10 −5 and ∼10 −4 mm in refractive index and thickness measurement, respectively.

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Long-haul self-mixing interference and remote sensing of a distant moving target with a thin-slice solid-state laser

Cited by 18 publications

References 12 publications

Precision Dimensional Measurements

Precision Dimensional Measurements

Frequency-Shifted Optical Feedback Measurement Technologies Using a Solid-State Microchip Laser

Measurement of Refractive Index Ranging from 1.42847 to 2.48272 at 1064 nm Using a Quasi-Common-Path Laser Feedback System

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