Large Dynamic Range Electro-Optic Probe
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United States of America Patent
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Issued Date -
Jul 4, 2019
app pub date -
Dec 31, 2017
filing date -
Dec 31, 2017
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Abstract
A mechanism is included for receiving a phase modulated optical signal. The phase modulated signal is modulated by a remote electrical test signal at a sensor head. A reference optical signal is also received. A phase difference between the phase modulated optical signal and the reference optical signal is then determined. The phase difference is employed to recover the remote electrical test signal from the sensor head. The phase difference may be determined by employing a phase modulator in a controller that tracks a phase modulator in the sensor head. The phase difference may also be determined by comparison of the signals in the complex signal domain.
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