Measurement of frequency sweep nonlinearity using atomic absorption spectroscopy
Sign Up to like & getrecommendations! Published in 2018 at "Optics Communications"
DOI: 10.1016/j.optcom.2017.09.043
Abstract: Abstract A novel scheme to determine frequency sweep nonlinearity using atomic saturated absorption spectroscopy is proposed and demonstrated. The frequency modulation rate is determined by directly measuring the interference fringe number and the frequency gap… read more here.
Keywords: sweep nonlinearity; frequency; nonlinearity using; spectroscopy ... See more keywords
Influence of frequency sweep on sonochemiluminescence and sonoluminescence.
Sign Up to like & getrecommendations! Published in 2020 at "Ultrasonics sonochemistry"
DOI: 10.1016/j.ultsonch.2020.105047
Abstract: Bubbles generated by acoustic cavitation may be efficient in light production by direct emission (sonoluminescence) or indirect emission (sonochemiluminescence) depending on operating parameters such as acoustic pressure and surface tension. These conditions are quite difficult… read more here.
Keywords: cavitation; sonoluminescence; frequency; sonochemiluminescence ... See more keywords
Circuit model based predistortion technique for linear frequency modulation of voltage controlled oscillator
Sign Up to like & getrecommendations! Published in 2019 at "Review of Scientific Instruments"
DOI: 10.1063/1.5104311
Abstract: A voltage controlled oscillator (VCO) is a key component in a frequency modulated continuous wave reflectometer. The linear frequency modulation (LFM) of the VCO has been implemented by predistorting the tuning voltage waveform or by… read more here.
Keywords: voltage; voltage controlled; frequency; circuit ... See more keywords
Frequency-Sweep-Range-Reconfigurable Complementary Linearly Chirped Microwave Waveform Pair Generation by Using a Fourier Domain Mode Locking Optoelectronic Oscillator Based on Stimulated Brillouin Scattering
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2020.2988210
Abstract: A Fourier domain mode locking (FDML) optoelectronic oscillator (OEO) based on stimulated Brillouin scattering (SBS) is proposed to generate complementary linearly chirped microwave waveform (LCMW) pairs with flexibly-reconfigurable frequency sweep range and excellent frequency sweep… read more here.
Keywords: frequency; fourier domain; frequency sweep; sweep range ... See more keywords
Application of Compressive Sensing to Asymptotic Waveform Evaluation for Fast Frequency-Sweep Analysis of Electromagnetic Scattering Problems
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Antennas and Propagation"
DOI: 10.1155/2019/2680180
Abstract: To reduce the computing resource of full-scale impedance matrix and its high-order derivatives in traditional Asymptotic Waveform Evaluation (AWE), compressive sensing (CS) is applied to AWE for fast and accurate frequency-sweep analysis of electromagnetic scattering… read more here.
Keywords: compressive sensing; sweep analysis; asymptotic waveform; waveform evaluation ... See more keywords
Optimal design for spectral narrowing and fast frequency sweep of an interferometer-stabilized laser
Sign Up to like & getrecommendations! Published in 2019 at "Optics Letters"
DOI: 10.1364/ol.45.000045
Abstract: Self-heterodyne fiber interferometers have been shown to be capable of stabilizing lasers to ultra-narrow linewidths and present an excellent alternative to high-finesse cavities for frequency stabilization. In addition to suppressing frequency noise, these devices are… read more here.
Keywords: laser; frequency; interferometer; optimal design ... See more keywords