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Sensor implementation technique
Optical homodyne detection
In electrical engineering, homodyne detection is a method of extracting information encoded as modulation of the phase and/or frequency 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 heterodyne detection.
When applied to processing of the reflected signal in remote sensing for topography, 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 velocity sensing.
and 26 Related for: Homodyne detection information
In electrical engineering, homodynedetection is a method of extracting information encoded as modulation of the phase and/or frequency of an oscillating...
than one frequency, in contrast to the single frequency employed in homodynedetection. The comparison of the two light signals is typically accomplished...
cameras use homodynedetection with an electronic CCD or CMOS shutter. A coherent imaging lidar uses synthetic array heterodyne detection to enable a...
reflecting quantum fluctuations in the electromagnetic field. In optical homodynedetection, the shot noise in the photodetector can be attributed to either the...
interferometric techniques may be categorized by a variety of criteria: In homodynedetection, the interference occurs between two beams at the same wavelength...
the system at a time; vacuum fluctuations generators use a laser homodynedetection to probe the changes in the vacuum state; laser phase noise generators...
Ph. Grangier (2004). "Proposal for a Loophole-Free Bell Test Using HomodyneDetection". Phys. Rev. Lett. 93 (13): 130409. arXiv:quant-ph/0403191. Bibcode:2004PhRvL...
with Gordon Gould among others, a 1962 paper describing the use of homodynedetection with laser light. Later, at Sylvania Electronic Systems, he contributed...
the improvements in Enhanced LIGO included: Increased laser power Homodynedetection Output mode cleaner In-vacuum readout hardware Science Run 6 (S6)...
OKE-probe and homodyne OKE signal. The probe and homodyne OKE signals can be filtered out, leaving the heterodyne frequency signal for detection. Heterodyne...
is known to be asymptotically achievable using coherent states and homodynedetection. Quantum metrology can reach the Heisenberg limit given by ( Δ θ )...
Gallion, P. (24 July 2009). "Decoy-state quantum key distribution using homodynedetection". Physical Review A. 80 (1). American Physical Society (APS): 012327...
limit of large α, these detection statistics are equivalent to that of a classical stable wave. These results apply to detection results at a single detector...
local oscillator. Direct conversion receiver Homodynedetection Heterodyne detection Optical heterodyne detection NE612, oscillator and a Gilbert cell multiplier...
value. Another type of measurement that could be made on the bath is homodynedetection, which results in quantum trajectories given by the following SME:...
concluded by Gaussian measurements (more specifically, by eight-port homodynedetection that projects each output mode onto a squeezed coherent state). Such...
; Milburn, G. J. (1993). "Quantum theory of optical feedback via homodynedetection" (PDF). Phys. Rev. Lett. 70 (5): 548–551. Bibcode:1993PhRvL..70..548W...
Laboratories had a working, but impractical, system in 1969. Heterodyne and homodyne systems are of interest because they are expected to produce an increase...
microwave is detected by the cavity antenna. Sum-frequency generation Homodynedetection Frequency Measurement AdvR - Down conversion in KTiOPO4 (KTP) v t...
in the literature, which relies on standard wave-front shaping and homodynedetection techniques. Using the same techniques, an optical scheme for cryptographic...
together with the end mirrors and thus increases a potential signal. Homodynedetection (also called 'DC readout') Output Mode Cleaner (OMC): An additional...
The optomechanical system can be measured by using a scheme like homodynedetection. Either the light of the driving laser is measured, or a two-mode...
quantum physics literature in a 1993 paper introducing experimental optical homodyne tomography. In quantum process tomography on the other hand, known quantum...
Common detection techniques include: interferometry (homodyne or heterodyne or Fabry–Pérot) and optical beam deflection (GCLAD) or knife edge detection. With...
a large amplification coefficient with minimal noise, one may use homodynedetection, constructing a field state with known amplitude and phase, corresponding...
modulation frequencies happens after the detection by electronic filtering.) The required detector is a balanced homodyne detector (BHD). It has two input ports...
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