Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Amr El Nagdi"'
Autor:
Mieczyslaw Dabkowski, Marc P. Christensen, Duncan L. MacFarlane, Viswanath Ramakrishna, Louis R. Hunt, Tim P. LaFave, Ke Liu, Amr El Nagdi
Publikováno v:
Sensors, Vol 11, Iss 2, Pp 1297-1320 (2011)
A theoretical study of RF-photonic channelizers using four architectures formed by active integrated filters with tunable gains is presented. The integrated filters are enabled by two- and four-port nano-photonic couplers (NPCs). Lossless and three i
Externí odkaz:
https://doaj.org/article/fbf9d364c4a94f5d9ce828ba41dfd37c
Autor:
Viswanath Ramakrishna, N. Sultana, Mieczyslaw K. Dabkowski, Amr El Nagdi, M. P. Christensen, T. W. Kim, N. Huntoon, Jiyoung Kim, J. Kirk, Tim LaFave, Ke Liu, Louis R. Hunt, G. A. Evans, Duncan L. MacFarlane
Publikováno v:
IEEE Journal of Quantum Electronics. 48:307-317
The role of gain in an optical filter is advanced by good agreement between theory and experiment presented herein. The particular integrated photonic filter is composed of four semiconductor optical amplifiers and one four-port coupler located at th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6dc501069f6b5ead2c59e54831d60fc9
https://doi.org/10.1109/jqe.2011.2174615
https://doi.org/10.1109/jqe.2011.2174615
Autor:
Amr El Nagdi, Mieczyslaw K. Dabkowski, Tim LaFave, Viswanath Ramakrishna, Ke Liu, Billye Cheek, Louis R. Hunt, Duncan L. MacFarlane
Publikováno v:
Acta Applicandae Mathematicae. 118:107-123
In this work, we consider design questions for an active optical lattice filter, which is being manufactured at the University of Texas at Dallas, and which has proven to be useful in the signal processing task of RF channelization. The filter can be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8904870e982d1ab4ae2c932448dc3b7b
https://doi.org/10.1007/s10440-012-9680-8
https://doi.org/10.1007/s10440-012-9680-8
Autor:
T. W. Kim, Tim LaFave, Nathan R. Huntoon, Jay B. Kirk, Viswanath Ramakrishna, Jiyoung Kim, Ke Liu, Mieczyslaw K. Dabkowski, Amr El Nagdi, Duncan L. MacFarlane, N. Sultana, Marc P. Christensen, Louis R. Hunt, Gary A. Evans
Publikováno v:
2011 International Quantum Electronics Conference (IQEC) and Conference on Lasers and Electro-Optics (CLEO) Pacific Rim incorporating the Australasian Conference on Optics, Lasers and Spectroscopy and the Australian Conference on Optical Fibre Technology.
A scalable adjustable photonic integrated circuit is developed. A key enabling component is a nanophotonic coupler requiring very high aspect ratio InP etching. The measured filter response of the device agrees well with theory.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4fb5cf24eaad066a3d9e617eed5a001
https://doi.org/10.1109/iqec-cleo.2011.6193738
https://doi.org/10.1109/iqec-cleo.2011.6193738
Autor:
Miecyszlaw Dabkowski, Ke Liu, Marc P. Christensen, Duncan L. MacFarlane, Louis R. Hunt, Jiyoung Kim, N. Sultana, Nathan R. Huntoon, Tim LaFave, Viswanath Ramakrishna, Amr El Nagdi, T. W. Kim
Publikováno v:
2010 Photonics Global Conference.
A 2D Active Lattice Filter ALF combining a Manhattan grid of waveguide gain segments with nanophotonic couplers at the waveguide intersections is presented. The particular application reported herein is a basic channelizer. The resulting structure is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fc6aff2140f7cf9869bc1310d25afb7
https://doi.org/10.1109/pgc.2010.5705959
https://doi.org/10.1109/pgc.2010.5705959
Autor:
Ke Liu, Viswanath Ramakrishna, Amr El Nagdi, Louis R. Hunt, Mieczyslaw K. Dabkowski, Duncan L. MacFarlane
Publikováno v:
Journal of the Optical Society of America A. 27:895
In this paper, we study the synthesis of asymptotically stable filters from a unit cell of a two-dimensional tunable lattice filter architecture consisting of four four-port couplers and four waveguides containing semiconductor optical amplifiers. Up
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbc126754c10fa7e98fe35e316c4e1b7
https://doi.org/10.1364/josaa.27.000895
https://doi.org/10.1364/josaa.27.000895
Publikováno v:
Journal of the Optical Society of America A. 26:A1
A system theoretic model of a unit cell of a two-dimensional tunable lattice filter architecture consisting of four 4-port couplers and four waveguides containing semiconductor optical amplifiers is provided. It is shown that such multiple input-mult
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::214041b991aa84bd864889778f79d098
https://doi.org/10.1364/josaa.26.0000a1
https://doi.org/10.1364/josaa.26.0000a1