165:, homodyne detection lacks the ability of heterodyne detection to determine the size of a static discontinuity in elevation between two locations. (If there is a path between the two locations with smoothly changing elevation, then homodyne detection may in principle be able to track the signal phase along the path if sampling is dense enough). Homodyne detection is more readily applicable to
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frequency of the laser. Usually the scattered beam will be weak, in which case the (nearly) steady component of the detector output is a good measure of the instantaneous local oscillator intensity and therefore can be used to compensate for any fluctuations in the intensity of the laser.. The generated current signal from the
272:. However, challenges include reducing noise, increasing bandwidth and improving the integration of electronic and photonic components. Recently, these challenges have been overcome to demonstrate a free-space-coupled room temperature quantum sensor with large-scale integrated photonics and electronics.
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are homodyne detectors integrated into measurement equipment or packaged as stand-alone laboratory equipment for sensitive detection and highly selective filtering of weak or noisy signals. Homodyne/lock-in detection has been one of the most commonly used signal processing methods across a wide range
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scattering measurement, the laser beam is split into two parts. One is the local oscillator and the other is sent to the system to be probed. The scattered light is then mixed with the local oscillator on the detector. This arrangement has the advantage of being insensitive to fluctuations in the
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technology, the distinction is not the source of the local oscillator, but the frequency used. In heterodyne detection, the local oscillator is frequency-shifted, while in homodyne detection it has the same frequency as the radiation to be detected. See
253:, homodyne detection can offer advantages over magnitude detection. The homodyne technique can suppress excessive noise and undesired quadrature components (90° out-of-phase), and provide stable access to information that may be encoded into the
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of an oscillating signal, by comparing that signal with a standard oscillation that would be identical to the signal if it carried null information. "Homodyne" signifies a single frequency, in contrast to the dual frequencies employed in
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Maria Fuwa; Shuntaro Takeda; Marcin Zwierz; Howard M. Wiseman; Akira
Furusawa (24 March 2015). "Experimental proof of nonlocal wavefunction collapse for a single particle using homodyne measurements".
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Su, Shi-Lei; Wang, Yuan; Guo, Qi; Wang, Hong-Fu; Zhang, Shou (2012). "Generating a four-photon polarization-entangled cluster state with homodyne measurement via cross-Kerr nonlinearity".
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JOEL F. TASKER; JONATHAN FRAZER; Giacomo
Ferranti; JONATHAN C. F. MATTHEWS (17 May 2024). "A Bi-CMOS electronic photonic integrated circuit quantum light detector".
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286:(QKD). An efficient receiver scheme for implementing QKD is balanced homodyne detection (BHD) using a positive–intrinsic–negative (
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Noll, D. C.; Nishimura, D. G.; Macovski, A. (1991). "Homodyne detection in magnetic resonance imaging".
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Optical
Homodyne Detections and Applications in Quantum Cryptography
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Homodyne detection was one of the key techniques in demonstrating
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Homodyne and heterodyne techniques are commonly used in
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When applied to processing of the reflected signal in
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In the processing of signals in some applications of
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479:Free-space quantum information platform on a chip
137:is a method of extracting information encoded as
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239:of experimental disciplines for decades.
106:Learn how and when to remove this message
326:"Heterodyne and homodyne interferometry"
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387:IEEE Transactions on Medical Imaging
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305:Optical heterodyne detection
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284:quantum key distribution
208:Transimpedance amplifier
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187:the reference radiation
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324:Chapman, Mark (2002).
131:electrical engineering
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422:Nature Communications
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280:secure communication
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197:. For example, in a
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55:"Homodyne detection"
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493:3 September
370:14 February
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257:of images.
177:In optical
591:Categories
522:2305.08990
311:References
300:Heterodyne
189:(i.e. the
163:topography
139:modulation
96:March 2015
66:newspapers
578:1674-1056
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290:) diode.
277:encrypted
173:In optics
169:sensing.
147:frequency
460:25801071
294:See also
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