Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Jacky C K Chan"'
Publikováno v:
PLoS ONE, Vol 11, Iss 7, p e0158201 (2016)
We describe a physics-based data compression method inspired by the photonic time stretch wherein information-rich portions of the data are dilated in a process that emulates the effect of group velocity dispersion on temporal signals. With this codi
Externí odkaz:
https://doaj.org/article/41899e0726b14108a81802c0ced750c8
Publikováno v:
Laser & Photonics Reviews. 16:2100524
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ce22f386a76af964ae14013ac16ce99
https://doi.org/10.1002/lpor.202100524
https://doi.org/10.1002/lpor.202100524
Publikováno v:
Real-time Measurements, Rogue Phenomena, and Single-Shot Applications III.
Photonic time stretch has been a successful imaging and spectroscopy technique that provides single-shot and real-time performance by employing highly dispersive optical elements to slow down the modulated optical signals and overcome the speed bottl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::532589883d95f8c289448dd6deef9d4b
https://doi.org/10.1117/12.2291418
https://doi.org/10.1117/12.2291418
Autor:
Bahram Jalali, Jacky C. K. Chan
Publikováno v:
CLEO Pacific Rim Conference.
We introduce a method for reversible engineering of signal to noise ratio of optical waveforms and discuss its potential for optical encryption and context-aware detection of weak signals in noisy environments.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ae14889888345c9caca942d440ba92a
https://doi.org/10.1364/cleopr.2018.th5a.4
https://doi.org/10.1364/cleopr.2018.th5a.4
Publikováno v:
Conference on Lasers and Electro-Optics.
To enable tunable temporal engineering in optical communications and processing systems, we integrate RF and wavelength control of mode excitation angle in a multimode waveguide. Dynamic tunability of dispersion is demonstrated over 1.27 ns and 40 nm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef1f5cdf570aea7356421487e6ab8ed5
https://doi.org/10.1364/cleo_at.2018.af2q.5
https://doi.org/10.1364/cleo_at.2018.af2q.5
Publikováno v:
SCIENTIFIC REPORTS(7)
Scientific Reports
Scientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
Scientific Reports
Scientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
Sensitive and fast optical imaging is needed for scientific instruments, machine vision, and biomedical diagnostics. Many of the fundamental challenges are addressed with time stretch imaging, which has been used for ultrafast continuous imaging for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1d3efee5d716484abf09c388053f04d
http://open-repository.kisti.re.kr/cube/handle/open_repository/481511.do
http://open-repository.kisti.re.kr/cube/handle/open_repository/481511.do
Publikováno v:
2016 IEEE Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP).
Inspired by mechanical gearboxes, we introduce an optical analog implementation of the gearbox as a means to overcome the mismatch between the ultrahigh speed of optical data and the much slower sampling rate of electronic digitizers and processors.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec806336c9849f65de1e3e5e61f2bae0
https://doi.org/10.1109/avfop.2016.7789911
https://doi.org/10.1109/avfop.2016.7789911
Publikováno v:
2016 IEEE Photonics Society Summer Topical Meeting Series (SUM).
Image compression by the warped stretch transform is introduced, where the input image is reshaped by a signal-dependent mapping i.e. designed “warp kernel”. The warped image can be downsampled at a lower uniform rate for the same PSNR, effective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3a822b8c516a90fc9172836d464c1d6
https://doi.org/10.1109/phosst.2016.7548804
https://doi.org/10.1109/phosst.2016.7548804
Publikováno v:
PLoS ONE, Vol 11, Iss 7, p e0158201 (2016)
PLoS ONE
PLoS ONE
We describe a physics-based data compression method inspired by the photonic time stretch wherein information-rich portions of the data are dilated in a process that emulates the effect of group velocity dispersion on temporal signals. With this codi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26b4fb9397a13d38e8252d7069c3ce4a
http://europepmc.org/articles/PMC4930214?pdf=render
http://europepmc.org/articles/PMC4930214?pdf=render
Publikováno v:
CISS
Warped stretch dispersive Fourier transform offers nonuniform spectrum sampling. Signal Sparsity and self-adaptive properties of the transform are explained. The loss in the optical transformation and reconstruction are also discussed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f732cf5b893bd7780ba6d6e4cb96993
https://doi.org/10.1109/ciss.2015.7086872
https://doi.org/10.1109/ciss.2015.7086872