Zobrazeno 1 - 10
of 90
pro vyhledávání: '"W, Grund"'
Autor:
Shouyuan Shi, John Wilson, Robert L. Nelson, Jian Bai, Garrett J. Schneider, Dennis W. Prather, Christopher A. Schuetz, Yifei Zhang, David W. Grund
Publikováno v:
Journal of Lightwave Technology. 32:3468-3477
In this paper we present a wideband optically addressed transmitting phased array antenna, consisting of an ultra-wideband tunable RF synthesizer, an optical phase-feed network, and a high-speed photodetector-integrated conformal array antenna. RF so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9300e795b42ed64fd5e12bc90d841945
https://doi.org/10.1109/jlt.2014.2317191
https://doi.org/10.1109/jlt.2014.2317191
Publikováno v:
Journal of Lightwave Technology. 32:1363-1369
Generating radio-frequency signals over the entire spectrum, from 1 to 100 GHz, typically requires the use of multiple oscillators designed only for specific narrow bands of operation within that spectrum. An optoelectronic system based on modulation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::deab18f1cb5d84206b740b1c3ea4bddb
https://doi.org/10.1109/jlt.2014.2302138
https://doi.org/10.1109/jlt.2014.2302138
Publikováno v:
Optics letters. 39(16)
In this Letter, we report on the improved configuration of a widely tunable optical RF generation system, particularly for the generation of low-frequency RF, as well as the reduction of phase noise in that same system. Using an amplitude modulator,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25668673fcc1958d5140a12a1cab78f6
https://pubmed.ncbi.nlm.nih.gov/25121844
https://pubmed.ncbi.nlm.nih.gov/25121844
Publikováno v:
SPIE Proceedings.
Generating RF signals over the entire spectrum, from hundreds of MHz to the hundreds of GHz, typically requires the use of multiple oscillators which operate only for specific bands within that spectrum. By mixing two lasers together, it is possible
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b84e99f74a4dac99f164f2311d65894
https://doi.org/10.1117/12.2039446
https://doi.org/10.1117/12.2039446
Publikováno v:
2013 IEEE International Topical Meeting on Microwave Photonics (MWP).
Generating RF signals over the entire spectrum, from hundreds of MHz into the hundreds of GHz, has previously required the use of special oscillators designed only for specific bands of operation within that spectrum. An optoelectronic system based o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::559568cffd783b1287efcb9e40d8cba1
https://doi.org/10.1109/mwp.2013.6724029
https://doi.org/10.1109/mwp.2013.6724029
Autor:
David W. Grund, Dennis W. Prather, Janusz Murakowski, Garrett A. Ejzak, Shouyuan Shi, Garrett J. Schneider
Publikováno v:
SPIE Proceedings.
A system for generating widely tunable, narrow-line RF signals from a pair of injection-locked lasers has been developed. By injection seeding one laser with a sideband obtained from a second laser that is phase modulated by a spectrally pure low-fre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f0b91f26ac576c0e5d875a0e8514992
https://doi.org/10.1117/12.2005916
https://doi.org/10.1117/12.2005916
Publikováno v:
OFC/NFOEC
We have developed a system for generating widely tunable, narrow-line RF signals from a pair of injection-locked lasers. Here we focus on the design and implementation of an integrated module and analysis of the produced RF.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d8074db96739c19199367a449e94873
https://doi.org/10.1364/ofc.2013.ow3d.3
https://doi.org/10.1364/ofc.2013.ow3d.3
Autor:
David W. Grund, Garrett A. Ejzak, Dennis W. Prather, Shouyuan Shi, Janusz Murakowski, Garrett J. Schneider, Jian Bai
Publikováno v:
IEEE Photonics Conference 2012.
The architecture of an optically addressed ultra-wideband (2–40 GHz) phased array, based on microwave photonic down-conversion techniques, is described. For such a phased array, the transmitter module consists of an ultra-wideband antenna, photodio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8105f0c66ce0819eb97b38dc42b537f7
https://doi.org/10.1109/ipcon.2012.6358649
https://doi.org/10.1109/ipcon.2012.6358649
Publikováno v:
The 9th International Conference on Group IV Photonics (GFP).
Through the use of a narrow-linewidth low-frequency oscillator, optical modulator, and injection locking, we have developed a system for generating widely tunable, narrow-line RF signals from a pair of injection-locked lasers. Here we focus on the de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a35ea4b1b2a44392a5f7c58c30e3419
https://doi.org/10.1109/group4.2012.6324137
https://doi.org/10.1109/group4.2012.6324137
Toward a widely tunable narrow linewidth RF source through heterogenous silicon photonic integration
Autor:
Garrett J. Schneider, Dennis W. Prather, Garrett A. Ejzak, David W. Grund, Shouyuan Shi, Janusz Murakowski
Publikováno v:
SPIE Proceedings.
By mixing two lasers together it, is possible to generate RF signals from near DC to hundreds of GHz. Through the use of a narrow-linewidth low-frequency oscillator, optical modulator, and injection locking, much higher frequency outputs can be produ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a337dbb98ce363bb93bc2960449e4b7
https://doi.org/10.1117/12.919384
https://doi.org/10.1117/12.919384