Definition of photodiode
: a photoelectric semiconductor device for detecting and often measuring radiant energy (such as light)
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The lasers have slightly different pulse repetition frequencies, so over time, the output of the photodiode oscillates from producing two signals to producing four and back again.
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The simplest part of the system is probably the laser measurement system, which only requires a laser with very high polarization purity and five photodiodes, all mounted on a very, very stable table.
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For solar power, the device uses a tiny (1 cm square) photodiode.
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Supplemental power to increase the device’s range comes from photodiodes, essentially tiny solar panels.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'photodiode.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of photodiode
1945
Learn More about photodiode
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Britannica.com: Encyclopedia article about photodiode
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