Work

Compact laser power measurement at tens of watts via amplified radiation pressure

Year: 2026

Type: article

Abstract: An amplified radiation-pressure power measurement was conducted using a compact, high-amplification laser-pressure optic (HALO-c), with an expanded uncertainty of 0.93% at a power of 100 W (95% confidence interval). A commercial force balance was used to measure the photon pressure amplified by 10 reflections for powers ranging from 5 W - 200 W. These low powers were measurable due to the high amplification factor of the light being measured and the low noise on the force balance. The HALO-c was constructed with all but two components being off-the-shelf. Our measurements were validated through comparison with a calibrated thermopile transfer standard; we found agreement within the measurement uncertainty at powers down to 5 W.

Source: Optics Express

DOI: 10.1364/oe.609652

Authors: Atlas Rhode, Benjamin Nienhouse, Brian Simonds, Paul Williams, Kyle Rogers

Institution: National Institute of Standards and Technology

Language: English

Topic: Scientific Measurement and Uncertainty Evaluation

Subfield: Instrumentation

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

OpenAlex ID: W7221004383

FWCI:

Cites: 11

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Related to: 10