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Physics > Applied Physics

Title: 500MHz resonant photodetector for high-frequency, high-quantum-effciency, low-noise homodyne measurement

Abstract: We design and demonstrate a resonant-type differential photodetector, for high-frequency, high-quantum-efficiency, low-noise quantum homodyne measurement at 500MHz optical sideband. By using a microwave monolithic amplifier and a discrete voltage buffer circuit, a low-noise voltage amplifier is realized and applied to our detector. 12dB of signal-to-noise ratio of the shot noise to the electric noise is obtained with 5mW of continuous-wave local oscillator at 860nm. We analyze the frequency response and the noise characteristics of a resonant photodetector, and the theoretical model agrees with the shot noise measurement.
Comments: 7 pages, 11 figures
Subjects: Applied Physics (physics.app-ph); Quantum Physics (quant-ph)
Cite as: arXiv:1803.06462 [physics.app-ph]
  (or arXiv:1803.06462v1 [physics.app-ph] for this version)

Submission history

From: Takahiro Serikawa [view email]
[v1] Sat, 17 Mar 2018 04:58:10 GMT (2174kb,D)