A G-Band 2-Pixel Heterodyne Receiver with Integrated Local Oscillator Chain
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Infrared, Millimeter, and Terahertz Waves"
DOI: 10.1007/s10762-019-00625-w
Abstract: A 2-pixel heterodyne receiver working in the 173–205-GHz band is presented in this paper. This receiver prototype is mainly composed of two balanced Schottky-based quadrature mixers and an integrated local oscillator (LO) chain. Based on… read more here.
Keywords: integrated local; local oscillator; pixel heterodyne; band ... See more keywords
Photoconductive antenna as local oscillator in terahertz frequency measurement: heterodyne efficiency and bias effect
Sign Up to like & getrecommendations! Published in 2018 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-018-1577-y
Abstract: In a photoconductive antenna (PCA), femtosecond-laser-excited carriers will form a broadband terahertz photon-carrier (PC) comb, and the terahertz PC comb can be used as a multi-frequency local oscillator to carry out heterodyne detection of continuous… read more here.
Keywords: local oscillator; photoconductive antenna; frequency; heterodyne ... See more keywords
Local Oscillator Phase Noise Model for EVM Estimation and Optimization
Sign Up to like & getrecommendations! Published in 2017 at "IETE Journal of Research"
DOI: 10.1080/03772063.2016.1229137
Abstract: ABSTRACT This work presents a local oscillator (LO) phase noise model and its experimental validation for carrier to phase noise ratio (CPNR) and error vector magnitude (EVM) evaluation on a radio frequency (RF) transceiver. The… read more here.
Keywords: phase; phase noise; model; local oscillator ... See more keywords
On-line estimation of local oscillator noise and optimisation of servo parameters in atomic clocks
Sign Up to like & getrecommendations! Published in 2017 at "Metrologia"
DOI: 10.1088/1681-7575/aa66e9
Abstract: For atomic frequency standards in which fluctuations of the local oscillator (LO) frequency are the dominant noise source, we examine the role of the the servo algorithm that predicts and corrects these frequency fluctuations. We… read more here.
Keywords: servo parameters; local oscillator; noise; line estimation ... See more keywords
Practical security analysis of a continuous-variable quantum random-number generator with a noisy local oscillator
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.102.012422
Abstract: A quantum random-number generator (QRNG) can theoretically generate unpredictable random numbers with perfect devices and is an ideal and secure source of random numbers for cryptography. However, the practical implementations always contain imperfections, which will… read more here.
Keywords: continuous variable; local oscillator; security; quantum random ... See more keywords
Performance of Kramers–Kronig Receivers in the Presence of Local Oscillator Relative Intensity Noise
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2019.2909683
Abstract: There is increasing interest in low-complexity coherent optical transceivers for the use in short-reach fiber links. Amongst the simplest configurations is the heterodyne coherent receiver, using a 3-dB coupler to combine the signal with the… read more here.
Keywords: performance; relative intensity; intensity noise; local oscillator ... See more keywords
A 2.4-GHz Quadrature Local Oscillator Buffer Insensitive to Frequency-Dependent Loads for Bluetooth Low Energy Applications
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Microwave and Wireless Components Letters"
DOI: 10.1109/lmwc.2020.3016733
Abstract: In this letter, a 2.4-GHz quadrature local oscillator (LO) buffer insensitive to frequency-dependent loads is presented for Bluetooth low energy (BLE) applications. An LC tank is used as a load in the proposed buffer to… read more here.
Keywords: frequency dependent; quadrature local; ghz quadrature; frequency ... See more keywords
Reconfigurable microwave photonic frequency upconverter with local oscillator doubling or local oscillator quadrupling
Sign Up to like & getrecommendations! Published in 2019 at "Optical Engineering"
DOI: 10.1117/1.oe.58.6.066111
Abstract: Abstract. A reconfigurable microwave photonic frequency upconverter with local oscillator (LO) doubling or LO quadrupling is proposed based on two cascaded dual-parallel Mach–Zehnder modulators (DPMZMs) and a fiber Bragg grating (FBG) with a wide bandwidth… read more here.
Keywords: reconfigurable microwave; microwave photonic; frequency; local oscillator ... See more keywords
Relationship between the sensitivity and beam splitting ratio, conversion efficiency, and local oscillator power in balanced detection.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.458104
Abstract: Balanced detection, which is becoming increasingly essential for wireless communication and optical fiber communication, has been extensively studied in recent years. However, the relationships between the sensitivity and the other parameters have not yet been… read more here.
Keywords: sensitivity; balanced detection; efficiency; local oscillator ... See more keywords
Coherent detection with an incoherent local oscillator.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.033970
Abstract: We demonstrate the feasibility of fully coherent reconstruction of the complex envelope of arbitrary optical fields while using an incoherent source as a local oscillator (LO). The reconstruction relies on a signal processing procedure that… read more here.
Keywords: local oscillator; incoherent local; detection incoherent; oscillator ... See more keywords
A Millimeter-Wave 4th-Harmonic Schottky Diode Mixer with Integrated Local Oscillator
Sign Up to like & getrecommendations! Published in 2021 at "Applied Sciences"
DOI: 10.3390/app11167238
Abstract: In this paper the design and experimental validation of a fourth-harmonic mixer based on Schottky diodes working around 300 GHz is presented. The main novelty of this work consists in the integration of an MMIC-based… read more here.
Keywords: local oscillator; wave 4th; millimeter wave; mixer ... See more keywords