Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Willie W. Ng"'
Publikováno v:
Journal of Lightwave Technology. 22:1953-1961
This paper compares two approaches for evaluating the amplitude and timing jitters of an Er-fiber laser mode-locked at 10 GHz. Using a low-noise oscillator as the clock drive for the mode-locking, relative amplitude jitter was measured as low as 0.03
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85c714e83ae70d0478929951a529893a
https://doi.org/10.1109/jlt.2004.832425
https://doi.org/10.1109/jlt.2004.832425
Publikováno v:
IEEE Photonics Technology Letters. 24:1185-1187
We report the demonstration of a time-stretch photonic analog-to-digital conversion (ADC) system with a stretch ratio of . By stretching a 10-GHz modulation envelope to 242 MHz via optical dispersion, we demonstrated, for the first time, an ADC resol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::752d926bff45baa443524756a192a135
https://doi.org/10.1109/lpt.2012.2198881
https://doi.org/10.1109/lpt.2012.2198881
Publikováno v:
IEEE Photonics Technology Letters. 16:2236-2238
We demonstrate theoretically that the electrooptic phase retardation, hence, modulation, can be enhanced very substantially in transverse Bragg resonance (TBR) waveguides. This enhancement is due fundamentally to the strong dependence of the dispersi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c63673237fa34818353af59a8ceaa3b8
https://doi.org/10.1109/lpt.2004.834559
https://doi.org/10.1109/lpt.2004.834559
Publikováno v:
IEEE Photonics Technology Letters. 6:231-234
We report the fabrication and characterization of the two-bit monolithic optical time-delay network on GaAs. GaAs rib-waveguides and InGaAs waveguide-coupled MSM detectors serve respectively as delay-lines and optoelectronic switches on the photonic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49fc13e604da500677c39a2ae3e5f162
https://doi.org/10.1109/68.275435
https://doi.org/10.1109/68.275435
Publikováno v:
Optics express. 18(26)
We report the first demonstration of Si microresonators (MRs) fabricated via substrate transfer on a silica waveguide (WG) wafer. Specifically, these Si microdisks were fabricated on a layer of Si (0.16-0.2 μm thick) that was directly-bonded on a si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d3a6b5257edde913a6bd86f8cbbe388
https://pubmed.ncbi.nlm.nih.gov/21196977
https://pubmed.ncbi.nlm.nih.gov/21196977
Publikováno v:
IEEE Photonics Technology Letters. 5:514-517
The design and fabrication of a 1.3- mu m waveguide-coupled strained-layer In/sub x/Ga/sub 1-x/As/GaAs MSM detector with an optimized active layer thickness is reported. For 100- mu m-long devices, a responsivity of 0.58 mA/mW is observed. Using the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90fd298ffd8328ced8cdfe6a64e34846
https://doi.org/10.1109/68.215266
https://doi.org/10.1109/68.215266
The first demonstration of an optically steered microwave phased array antenna using true-time-delay
Publikováno v:
Journal of Lightwave Technology. 9:1124-1131
The concept of true-time-delay steering for phased array antennas and its advantage over phase shifters in broadband applications are described with particular emphasis on the potential advantages offered by fiber-optic delay lines. The system archit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5aa13e0edf155fb56f8c80071ce56c02
https://doi.org/10.1109/50.85809
https://doi.org/10.1109/50.85809
Autor:
Charles H. Fields, S. Thomas, L. Luh, David L. Persechini, Willie W. Ng, D. Le, J. Lin, Joseph F. Jensen
Publikováno v:
CICC
A 10.24GSPS photonic sampled DeltaSigma modulator was implemented with HRL laboratories InP HBT process. The 12GHz analog input is sampled by a LiNbO3 optical modulator with a 10.24GHz ultra-low jitter mode-locked laser. The intensity-modulated diffe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff13d2658f13acf470407814132068df
https://doi.org/10.1109/cicc.2005.1568686
https://doi.org/10.1109/cicc.2005.1568686
Autor:
Willie W. Ng
Publikováno v:
Frontiers in Optics.
We describe the advantages of adopting coherent technololgies for the high fidelity transmission of microwave signals via photonic links. The resulting enhancement of the link’s figures-of-merit such as its spur free dynamic range will be presented
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20468a16271a94908ce611a86f445b0d
https://doi.org/10.1364/fio.2006.fmj1
https://doi.org/10.1364/fio.2006.fmj1
Publikováno v:
IEEE/LEOS 1995 Digest of the LEOS Summer Topical Meetings. Flat Panel Display Technology.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2c8e3d2109b4074eb6ce601593eab5a
https://doi.org/10.1109/leosst.1995.764184
https://doi.org/10.1109/leosst.1995.764184