Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Salman Khaleghi"'
Autor:
Salman Khaleghi, Omer F. Yilmaz, Mohammad Reza Chitgarha, Moshe Tur, Nisar Ahmed, Scott R. Nuccio, Irfan M. Fazal, Xiaoxia Wu, Michael W. Haney, Carsten Langrock, Martin M. Fejer, Alan E. Willner
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 4, Pp 1220-1235 (2012)
We demonstrate a reconfigurable high-speed optical tapped delay line (TDL), enabling several fundamental real-time signal processing functions such as correlation (for pattern search) and equalization. Weighted taps are created and added using optica
Externí odkaz:
https://doaj.org/article/33de14fdecb54a4297de01161e2bca4c
Autor:
Yinwen Cao, Alan E. Willner, Martin M. Fejer, Ahmed Almaiman, Mohammad Reza Chitgarha, Amirhossein Mohajerin-Ariaei, Salman Khaleghi, Carsten Langrock, Joseph D. Touch, Morteza Ziyadi
Publikováno v:
Journal of Lightwave Technology. 33:1344-1350
Homodyne detection is of significant interest in optical communications because it detects both the amplitude and phase information of the incoming data channel. One of the challenges in implementing a homodyne receiver is to recover the phase and fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6acd343f9e338393bf8ece23299ddadb
https://doi.org/10.1109/jlt.2014.2386340
https://doi.org/10.1109/jlt.2014.2386340
Publikováno v:
Journal of Lightwave Technology. 32:660-680
Optical signal processing brings together various fields of optics and signal processing - namely, nonlinear devices and processes, analog and digital signals, and advanced data modulation formats - to achieve high-speed signal processing functions t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2b9029c40be76ecfc057a27a542da75
https://doi.org/10.1109/jlt.2013.2287219
https://doi.org/10.1109/jlt.2013.2287219
Autor:
Irfan Fazal, Michael W. Haney, Omer F. Yilmaz, Martin M. Fejer, Xiaoxia Wu, Scott R. Nuccio, Alan E. Willner, Nisar Ahmed, Salman Khaleghi, Mohammad Reza Chitgarha, Moshe Tur, Carsten Langrock
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 4, Pp 1220-1235 (2012)
We demonstrate a reconfigurable high-speed optical tapped delay line (TDL), enabling several fundamental real-time signal processing functions such as correlation (for pattern search) and equalization. Weighted taps are created and added using optica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7474cbcb929555fde2dd9f1216c154af
https://ieeexplore.ieee.org/document/6224163/
https://ieeexplore.ieee.org/document/6224163/
Autor:
Moshe Tur, Joseph D. Touch, Salman Khaleghi, Amirhossein Mohajerin-Ariaei, Yinwen Cao, Mohammad Reza Chitgarha, Ahmed Almaiman, Loukas Paraschis, Carsten Langrock, Amine Abouzaid, Alan E. Willner, Morteza Ziyadi, Bishara Shamee, Martin M. Fejer
Publikováno v:
Optics letters. 40(14)
A radio frequency (RF) photonic filter is experimentally demonstrated using an optical tapped delay line (TDL) based on an optical frequency comb and a periodically poled lithium niobate (PPLN) waveguide as multiplexer. The approach is used to implem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d4d7fe7c4fd6d0b7bfc6c7512487932
https://pubmed.ncbi.nlm.nih.gov/26176450
https://pubmed.ncbi.nlm.nih.gov/26176450
Autor:
Wajih Daab, Alan E. Willner, Morteza Ziyadi, Ahmed Almaiman, Mohammad Reza Chitgarha, Daniel C. Kilper, Michael Wang, Xiaoxue Zhao, Loukas Paraschis, Vijay Vusirikala, Salman Khaleghi, Joseph D. Touch, Atiyah Ahsan, Moshe J. Willner, Moshe Tur, Keren Bergman, Amirhossein Mohajerin-Ariaei
Publikováno v:
Optics letters. 40(9)
We experimentally studied the performance of a delay-line interferometer-based optical signal-to-noise ratio (OSNR) monitor that is pre-calibrated in optimal conditions for 25-Gbaud pol-muxed quadrature-amplitude-modulation (QAM) signals, when unpred
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13124a06614b08f5ffe1033229f54644
https://pubmed.ncbi.nlm.nih.gov/25927771
https://pubmed.ncbi.nlm.nih.gov/25927771
Autor:
Salman Khaleghi, Ahmed Almaiman, Martin M. Fejer, Joseph D. Touch, Alan E. Willner, Mohammad Reza Chitgarha, Carsten Langrock, Moshe Tur, Morteza Ziyadi, Amirhossein Mohajerin-Ariaei
Publikováno v:
Optics letters. 39(23)
We demonstrate a reconfigurable 2D optical tapped-delay-line (OTDL) to correlate quadrature-phase-shift-keying (QPSK) 20 Gbaud data. By implementing two independent tapped-delay-lines which performs correlation over rows (inner sum), along with a coh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91babde34d0df3d466359488a05c7b4a
https://pubmed.ncbi.nlm.nih.gov/25490624
https://pubmed.ncbi.nlm.nih.gov/25490624
Autor:
Morteza Ziyadi, Joseph D. Touch, Loukas Paraschis, Carsten Langrock, Amirhossein Mohajerin-Ariaei, Martin M. Fejer, Yinwen Cao, Moshe J. Willner, Alan E. Willner, Mohammad Reza Chitgarha, Moshe Tur, Salman Khaleghi, Ahmed Almaiman
Publikováno v:
Optics letters. 39(23)
We demonstrate optical Nyquist channel generation based on a comb-based optical tapped-delay-line. The frequency lines of an optical frequency comb are used as the taps of the optical tapped-delay-line to perform a finite-impulse response (FIR) filte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7aba2f6f84ce12b9c291bf7eea1f3cf
https://pubmed.ncbi.nlm.nih.gov/25490627
https://pubmed.ncbi.nlm.nih.gov/25490627
Publikováno v:
IEEE Access, Vol 10, Pp 84569-84578 (2022)
We propose a novel and adaptive feature space distillation method (AFSD) to reduce the communication overhead among distributed computers. The proposed method improves the Codistillation process by supporting longer update interval rates. AFSD perfor
Externí odkaz:
https://doaj.org/article/398261c727294eb6be989d8a1df40170
Autor:
Moshe Tur, Yinwen Cao, Salman Khaleghi, Mohammad Reza Chitgarha, Martin M. Fejer, Ahmed Almaiman, Joseph D. Touch, Carsten Langrock, Alan E. Willner, Morteza Ziyadi, Loukas Paraschis, Amirhossein Mohajerin-Ariaei
Publikováno v:
2014 The European Conference on Optical Communication (ECOC).
We experimentally de-aggregate the 8-PSK signal (EVM 8.7%) onto two 4-PAM signals (EVM 8.8%). QPSK signals are demultiplexed into two BPSK signals with EVMs ~11.4 %. Deaggregation performance as a function of the OSNR of the incoming signals is evalu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bee5b561d69affbd90ceb84d1333647e
https://doi.org/10.1109/ecoc.2014.6964132
https://doi.org/10.1109/ecoc.2014.6964132