Results 81 to 90 of about 459,320 (213)
Phase sensitive parametric amplifiers and their applications
, 2012 Phase sensitive amplification (PSA) is a remarkably powerful tool if implemented correctly - it allows amplification with a noise figure lower than quantum mechanics normally dictates, and also allows the development of systems that coherently process ...
Kakande, Joseph
core
Noise suppression of incoherent light using a gain-saturated SOA: implications for spectrum-sliced WDM systems [PDF]
, 2005 In this paper, we present an experimental and numerical study of semiconductor optical amplifier (SOA)-based noise suppression and its relevance to high-channel-density spectrum sliced wavelength-division-multiplexed systems. We show that the improvement
Ibsen, M +14 more
core +1 more source
Frequency stable and low phase noise THz synthesis for precision spectroscopy. [PDF]
Nat Commun, 2023 Djevahirdjian L +6 more
europepmc +1 more source
Optical phase-sensitive amplifiers (PSAs) leverage nonlinear interactions to achieve noise figures below the conventional quantum limit. Dual-pump phase-insensitive amplification has been studied in wavelength conversion, phase conjugation and spectral ...
Udayanga, Ruwan, +2 more
core +1 more source
A Dual-Band Low Noise Low Power Local LC Oscillator
Iranian Journal of Electrical and Electronic Engineering, 2021 In this paper a novel design is presented for a dual-band LC oscillator, using an analytical approach. The core of the proposed circuit contains a cross-coupled CMOS LC oscillator with two serried LC tanks so that the inductors of these tanks have mutual
H. Ghonoodi, M. Hadjmohammadi
doaj
Ultra-Low Phase Noise Frequency Division With Array of Direct Digital Synthesizers. [PDF]
IEEE Trans Instrum Meas, 2023 Pomponio M, Hati A, Nelson C.
europepmc +1 more source
Laser Heterodyne Detection Based on Photon Time-Domain Differential Detection Avoiding the Effect of Decoherence Phase Noise. [PDF]
Sensors (Basel), 2023 Guan C, Zhang Z, Jia F, Zhao Y.
europepmc +1 more source
Long-range fiber-optic earthquake sensing by active phase noise cancellation. [PDF]
Sci Rep, 2023 Noe S +4 more
europepmc +1 more source
, 2015 Common-path diffraction optical tomography (cDOT) is a non-invasive and label-free optical holographic technique for measuring both the three-dimensional refractive index (RI) tomograms and two-dimensional dynamic phase images of a sample.
Kim, Young-Jin +15 more
core +1 more source
Channel estimation for ambient Internet of things
物联网学报Passive backscatter based ambient Internet of things (AIoT) was an important development direction for the future of IoT and currently attracted extensive attentions.
WANG Ruoheng +4 more
doaj