Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Konstantin Kravtsov"'
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 60:598-607
We describe two methods of automatically tuning the optical parameters of the optical counter-phase interference-cancellation system. The methods not only achieve signal cancellation automatically but also permit that cancellation to be maintained in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebb47613464f927b7a9ba66560070d2f
https://doi.org/10.1109/tim.2010.2051058
https://doi.org/10.1109/tim.2010.2051058
Autor:
Yanhua Deng, K. Sasaki, Konstantin Kravtsov, Paul R. Prucnal, G.C. Gupta, S. Kobayashi, Mable P. Fok
Publikováno v:
Journal of Lightwave Technology. 27:5370-5375
In this paper, we investigate all-optical truly asynchronous detection without global clocking in an incoherent optical code-division multiple-access (CDMA) system. The implemented system is designed with an integrable optical source consisting of an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebf81e02d748e265acfbf3efcbea9d00
https://doi.org/10.1109/jlt.2009.2032302
https://doi.org/10.1109/jlt.2009.2032302
Autor:
Konstantin Kravtsov, Paul R. Prucnal
Publikováno v:
Journal of Lightwave Technology. 27:4069-4075
Like its wireless counterpart, optical code-division multiple access (optical CDMA) offers greater scalability than other optical multiplexing schemes and provides flexible quality of service, physical layer privacy and asynchronous access. However,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfd625a5011e5ce0948b139b6d388c48
https://doi.org/10.1109/jlt.2009.2022193
https://doi.org/10.1109/jlt.2009.2022193
Publikováno v:
IEEE Journal of Quantum Electronics. 45:396-401
In this paper, we demonstrate a novel self-clocked code-drop unit for incoherent optical code-division multiple-access (CDMA) networks. The unit is based on an all-optical thresholder with internal wavelength conversion that creates a control signal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2a63fd76fb9a5c11623429c4199d79a
https://doi.org/10.1109/jqe.2009.2013105
https://doi.org/10.1109/jqe.2009.2013105
Publikováno v:
IEEE Journal of Quantum Electronics. 45:402-408
In this paper, we describe a system for cancelling radio-frequency (RF) interference using optical techniques. Specifically, we attempt to receive a weak RF signal-which we assume to be of the order of microwatts-in the presence of high-power local R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7f0ea4c17e9a0ac3576d2eabf27137b
https://doi.org/10.1109/jqe.2009.2013106
https://doi.org/10.1109/jqe.2009.2013106
Demonstration of an All-Optical OCDMA Encryption and Decryption System With Variable Two-Code Keying
Publikováno v:
IEEE Photonics Technology Letters. 20:2045-2047
We demonstrate the first all-optical optical code-division multiple-access (OCDMA) encryption and decryption system with variable two-code keying. The nonlinear optical loop mirror (NOLM)-based exclusive or (xor) employed in encryption utilizes the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3554ea63e8e14d67d034b4d685b3233
https://doi.org/10.1109/lpt.2008.2006063
https://doi.org/10.1109/lpt.2008.2006063
Autor:
Carlos Pina-Hernandez, Christophe Peroz, Valeria Lacatena, Scott Dhuey, Deirdre L. Olynick, Vladimir Yankov, Alexander Goltsov, Konstantin Kravtsov, Stefano Cabrini, Giuseppe Calafiore
Publikováno v:
Nanotechnology. 24(6)
A novel and robust route for high-throughput, high-performance nanophotonics-based direct imprint of high refractive index and low visible wavelength absorption materials is presented. Sub-10 nm TiO2 nanostructures are fabricated by low-pressure UV-i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6af95f0937f503daad10d728776a4632
https://pubmed.ncbi.nlm.nih.gov/23339929
https://pubmed.ncbi.nlm.nih.gov/23339929
Publikováno v:
Conference on Lasers and Electro-Optics 2012.
We present novel on-a-chip spectral-phase devices that allow ultra-compact solutions for QPSK, QPSK over WDM, and optical CDMA. The used concept of digital planar holography is backed with simulations and experimental results.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db4e8103e70449e3cbfcd1d003db96da
https://doi.org/10.1364/cleo_at.2012.jw4a.15
https://doi.org/10.1364/cleo_at.2012.jw4a.15
Publikováno v:
Optics letters. 36(23)
We experimentally demonstrate an all-passive fiber-based approach to prevent undesired beating during signal merging and detection. Beating occurs when optical signals of very close or the same wavelength are combined at a coupler and detected using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49f4ebca52db96de4ddc5b9a749964c1
https://pubmed.ncbi.nlm.nih.gov/22139248
https://pubmed.ncbi.nlm.nih.gov/22139248
Publikováno v:
2011 ICO International Conference on Information Photonics.
Spike processing devices for optical computational systems have the potential to be scalable, computationally powerful, and have high operation bandwidth. They open up a range of optical processing applications for which electronic processing is too
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdb201895d6002c8f74c1f868d2ea2a2
https://doi.org/10.1109/ico-ip.2011.5953707
https://doi.org/10.1109/ico-ip.2011.5953707