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arXiv · 2301.02658

Measuring Power with a Saturated Photodiode

Shiekh Zia Uddin
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Abstract

Accurate measurement of optical power is pivotal in many applications and scientific research. However, traditional power meters are unable to measure power levels beyond a certain saturation point, limiting their usefulness in high-power applications. In this technical note, I discuss how optical power can be measured using a saturated photodiode. I demonstrate that by monitoring both the dc photocurrent and ac noise, it is possible to accurately measure power levels beyond its saturation point.

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Shiekh Zia Uddin. 2023-01-07. Measuring Power with a Saturated Photodiode. https://arxiv.org/abs/2301.02658

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