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1 April 2022 All-optical probing of a semiconductor photodiode
Luca Picelli, René P. J. van Veldhoven, Ewold Verhagen, Andrea Fiore
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Proceedings Volume PC11995, Physics and Simulation of Optoelectronic Devices XXX; PC1199509 (2022) https://doi.org/10.1117/12.2607209
Event: SPIE OPTO, 2022, San Francisco, California, United States
Abstract
We investigate the possibility of probing the electrical status of a p-i-n junction via an optical fiber, without the need for electrical contacts. A photonic crystal with a resonance in the near-infrared is etched in a thin membrane of III-V semiconductor with an embedded p-i-n junction and placed on the cleaved facet of a fiber. We measure the effect of photoexcited carriers on the built-in voltage of the diode through the Pockels effect. This may enable the all-optical read-out of electrical signals from sensors in a distant or inaccessible environment.
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Luca Picelli, René P. J. van Veldhoven, Ewold Verhagen, and Andrea Fiore "All-optical probing of a semiconductor photodiode", Proc. SPIE PC11995, Physics and Simulation of Optoelectronic Devices XXX, PC1199509 (1 April 2022); https://doi.org/10.1117/12.2607209
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KEYWORDS
Semiconductors
Photodiodes
Photonic crystals
Optical fibers
Photodetectors
Photonic devices
Refractive index
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