Total momentum transfer produced by the photons of a multi-pass laser beam as an evident avenue for optical and mass metrology

Vasilyan, Suren; Fröhlich, Thomas; Manske, Eberhard

doi:10.1364/oe.25.020798

Cited by 20 publications

(41 citation statements)

References 68 publications

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“…Several authors [25,26] use an angular amplification method based on multiple reflections. We could use it to amplify the angle of deviation of the laser beam whose optical power must be measured.…”

Section: Resultsmentioning

confidence: 99%

Optical power meter using radiation pressure measurement

Pinot

Silvestri

2019

Measurement

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This paper describes a radiation pressure meter based on a diamagnetic spring. We take advantage of the diamagnetic property of pyrolytic carbon to make an elementary levitated system. It is equivalent to a torsional spring-mass-damper system consisting of a small pyrolytic carbon disc levitated above a permanent magnet array. There are several possible measurement modes. In this paper, only the angular response to an optical power single-step is described. An optical detection composed of a laser diode, a mirror and a position sensitive detector (PSD) allow measurement of the angular deflection proportional to the voltage delivered by the PSD. Once the parameters of the levitated system depending on its geometrical and physical characteristics have been determined regardless of any optical power, by applying a simple physical law, one can deduce the value of the optical power to be measured from the measurement of the first maximum of the output voltage amplitude.

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Section: Resultsmentioning

confidence: 99%

Optical power meter using radiation pressure measurement

Pinot

Silvestri

2019

Measurement

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“…This fit determines the parameters necessary to calculate the circulating power inside the cavity with Eq. (6). Figure 4 at 1550 nm (all uncertainties are reported as one standard deviation).…”

Section: Resultsmentioning

confidence: 99%

“…The connection between optical power and force within an optical cavity has received less attention from the metrological community [6]. For a given incident laser power at the resonance frequency of the cavity, there is a buildup of circulating optical power.…”

Section: Introductionmentioning

confidence: 99%

Direct measurement of radiation pressure and circulating power inside a passive optical cavity

Wagner¹,

Guzmán²,

Chijioke³

et al. 2018

Opt. Express

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A mechanical force sensor coupled to two optical cavities is developed as a metrological tool. This system is used to generate a calibrated circulating optical power and to create a transfer standard for externally coupled optical power. The variability of the sensor as a transfer standard for optical power is less than 2%. The uncertainty in using the sensor to measure the circulating power inside the cavity is less than 3%. The force measured from the mechanical response of the sensor is compared to the force predicted from characterizing the optical spectrum of the cavity. These two forces are approximately 20% different. Potential sources for this disagreement are analyzed and discussed. The sensor is compact, portable, and can operate in ambient and vacuum environments. This device provides a pathway to novel nanonewton scale force and milliwatt scale laser power calibrations, enables direct measurement of the circulating power inside an optical cavity, and enhances the sensitivity of radiation pressure-based optical power transfer standards.

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“…However, direct measurements of radiation pressure at the lowest powers of NIST's current coverage range will be extremely challenging. For this task, cavity enhancement approaches are promising for amplifying the radiation pressure force for improved sensitivity [37,38].…”

Section: Discussionmentioning

confidence: 99%

Meta-study of laser power calibrations ranging 20 orders of magnitude with traceability to the kilogram

et al. 2019

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Laser power metrology at the National Institute of Standards and Technology (NIST) ranges 20 orders of magnitude from photon-counting (10 3 photons/s) to 100 kW (10 23 photons/s at a wavelength of 1070 nm). As a part of routine practices, we perform internal (unpublished) comparisons between our various power meters to verify correct operation. Here we use the results of these intercomparisons to demonstrate an unbroken chain tracing each power meter's calibration factor to the NIST cryogenic radiometer (our lowest uncertainty standard, whose SI traceability is established through the volt and ohm units). This yields the expected result that all the NIST primary standard measurement techniques agree with each other to within their measurement uncertainty. Then, these intercomparison results are re-mapped to describe the agreement of the various techniques with our radiation-pressure-based power measurement approach, whose SI traceability is established through the kilogram. Again, agreement is demonstrated to within the measurement uncertainty. This agreement is reassuring because the measurements are compared with two entirely different traceability paths and show expected agreement in each case. The ramifications of this agreement as well as potential means to improve on it are discussed.We demonstrate SI measurement traceability of our single-photon power measurement through the kilogram with less than 3 % relative expanded uncertainty (obtained for a coverage factor k=2 defining an interval having a level of confidence of approximately 95 %). I. (cesium hyperfine splitting frequency), and c (the speed of light in vacuum). *At the time of publication, the NextGenC is not yet fully validated as a primary standard but is included for completeness.

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Total momentum transfer produced by the photons of a multi-pass laser beam as an evident avenue for optical and mass metrology

Cited by 20 publications

References 68 publications

Optical power meter using radiation pressure measurement

Optical power meter using radiation pressure measurement

Direct measurement of radiation pressure and circulating power inside a passive optical cavity

Meta-study of laser power calibrations ranging 20 orders of magnitude with traceability to the kilogram

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