Fabrication of Electrospun Mn 1-x Zn x MoO 4 (x=2.5, 5, and 10% Zn) Nanofibers: Microstructure Parameters, Surface Morphology and Kramers-Kronig (KK) Analysis
Sign Up to like & getrecommendations! Published in 2018 at "Ceramics International"
DOI: 10.1016/j.ceramint.2018.01.100
Abstract: Abstract Electrospun Mn1−xZnxMoO4 nanofibers (x = 2.5%, 5% and 10%), have been prepared by controlling the Zn concentration of a polymeric solution followed by calcination. The effects of Zn doping on structural, morphological, chemical characterization,… read more here.
Keywords: nanofibers microstructure; moo nanofibers; analysis; electrospun moo ... See more keywords
Employing a Kramers–Kronig receiver with a directly-modulated laser
Sign Up to like & getrecommendations! Published in 2021 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.126472
Abstract: Abstract The Kramers–Kronig (KK) receiver has been used for dispersion compensation in direct detection systems employing external-modulator-based transmitters. In this paper, we investigate the use of the KK receiver for dispersion compensation in a direct… read more here.
Keywords: modulated laser; kronig receiver; directly modulated; laser ... See more keywords
Designing refractive index fluids using the Kramers-Kronig relations.
Sign Up to like & getrecommendations! Published in 2020 at "Faraday discussions"
DOI: 10.1039/d0fd00027b
Abstract: For a number of optical applications, it is advantageous to precisely tune the refractive index of a liquid. Here, we harness a well-established concept in optics for this purpose. The Kramers-Kronig relation provides a physical… read more here.
Keywords: index; designing refractive; index fluids; kramers kronig ... 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 Study on Sampling Penalties Reduction of Kramers-Kronig Receivers
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2021.3099938
Abstract: Kramers-Kronig (KK) relation-based receiver can recover the field using a single-photodiode. However, the KK receiver requires a high carrier-to-signal power ratio (CSPR), and digital signal processing performed a few times faster than the Nyquist sampling… read more here.
Keywords: sampling penalties; penalties reduction; digital upsampling; study sampling ... See more keywords
A Closed-Form Expression for Direct Detection Transmission Systems With Kramers-Kronig Receiver
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2018.2875791
Abstract: In recent years, direct detection (DD) transmission with Kramers–Kronig (KK) receiver has attracted a lot of attention as a promising technology for short reach and metro applications due to its capability of electronic chromatic dispersion… read more here.
Keywords: transmission; detection transmission; kronig receiver; receiver ... See more keywords
140-Gb/s PS-256-QAM Transmission in an OFDM System Using Kramers–Kronig Detection
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2019.2929524
Abstract: We experimentally demonstrate an orthogonal frequency-division multiplexing (OFDM) system with direct detection. Adopting Kramers–Kronig (KK) detection and probabilistic shaping (PS) technology, 140-Gb/s 256-QAM signal can be successfully transmitted over 25-km standard single-mode fiber (SSMF), which… read more here.
Keywords: kronig detection; 256 qam; ofdm system; 140 256 ... See more keywords
Kramers-Kronig receiver operable without digital upsampling.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.013810
Abstract: The Kramers-Kronig (KK) receiver is capable of retrieving the phase information of optical single-sideband (SSB) signal from the optical intensity when the optical signal satisfies the minimum phase condition. Thus, it is possible to direct-detect… read more here.
Keywords: receiver operable; samples per; kronig receiver; digital upsampling ... See more keywords
Transmission of a 112-Gbit/s 16-QAM over a 1440-km SSMF with parallel Kramers-Kronig receivers enabled by an overlap approach and bandwidth compensation.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.413623
Abstract: We investigate the parallelized performance of the conventional Kramers-Kronig (KK) and without the digital up-sampling KK (WDU-KK) receivers in a 112-Gbit/s 16-ary quadrature amplitude modulation (16-QAM) system over a 1440-km standard single-mode fiber (SSMF). A… read more here.
Keywords: 1440 ssmf; overlap approach; approach bandwidth; bandwidth compensation ... See more keywords
Spectrum sampling optimization for quantitative phase imaging based on Kramers-Kronig relations.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.460084
Abstract: Annular-illumination quantitative phase imaging based on space-domain Kramers-Kronig relations (AIKK) is a newly developed technique that is object-independent and non-iterative reconstructed inherently. Only capturing four low-resolution images, the AIKK system gains a resolution enhancement of… read more here.
Keywords: spectrum sampling; phase imaging; kronig relations; imaging based ... See more keywords
Non-iterative complex wave-field reconstruction based on Kramers–Kronig relations
Sign Up to like & getrecommendations! Published in 2021 at "Photonics Research"
DOI: 10.1364/prj.419886
Abstract: A new computational imaging method to reconstruct the complex wave-field is reported. Due to the existence of zero frequency component, the measured signal by amplitude modulation of pupil has a spectrum similar to the one… read more here.
Keywords: complex wave; wave field; kronig relations; kramers kronig ... See more keywords