Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Joseph D. Touch"'
Autor:
Fatemeh Alishahi, Joseph D. Touch, Alan E. Willner, Morteza Ziyadi, Peicheng Liao, Yinwen Cao, Moshe Tur, Bishara Shamee, Ahmed Almaiman, Changjing Bao, Ahmad Fallahpour, Amirhossein Mohajerin-Ariaei
Publikováno v:
Optics Communications. 451:74-79
We experimentally demonstrate tunable de-aggregation of two data carrying optical channels using nonlinear wave mixing. For each channel, the signal and its conjugate are coherently added and subtracted in order to map the constellation points onto r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7ca93c65a735d7e2b8aa7bc7307cf0a
https://doi.org/10.1016/j.optcom.2019.06.036
https://doi.org/10.1016/j.optcom.2019.06.036
Autor:
Moshe Tur, Huibin Zhou, Alan E. Willner, Fatemeh Alishahi, Joseph D. Touch, Martin M. Fejer, Kaiheng Zou, Bishara Shamee, Ahmed Almaiman, Amirhossein Mohajerin-Ariaei, Ahmad Fallahpour, Yinwen Cao, Ari N. Willner, Carsten Langrock, Changjing Bao, Peicheng Liao
Publikováno v:
Journal of Lightwave Technology. 37:548-554
Optical mitigation of interchannel interference (ICI) for multiple spectrally overlapped data channels is experimentally demonstrated without multichannel detection and channel spacing estimation. The ICI mitigation takes place in three stages of per
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7961a0bda135aa50db6acb273e56bf62
https://doi.org/10.1109/jlt.2018.2890283
https://doi.org/10.1109/jlt.2018.2890283
Autor:
Tadashi Ikeuchi, Ahmad Fallahpour, Yinwen Cao, Ahmed Almaiman, Alan E. Willner, Steven R. Wilkinson, Bishara Shamee, Fatemeh Alishahi, Joseph D. Touch, Amirhossein Mohajerin-Ariaei, Changjing Bao, Moshe Tur, Peicheng Liao, Youichi Akasaka, Morteza Ziyadi
Publikováno v:
Optics Communications. 423:48-52
We experimentally demonstrate all-optical phase-sensitive quantization of a 10–20 Gbaud quadrature phase-shift keying (QPSK) signal’s phase without an active phase-locked loop (PLL) by utilizing Brillouin amplification (BA) to amplify the fourth-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36cd96bee2f87d95f50124e2f72b39ff
https://doi.org/10.1016/j.optcom.2018.04.003
https://doi.org/10.1016/j.optcom.2018.04.003
Autor:
Ahmed Almaiman, Morteza Ziyadi, Martin M. Fejer, Youichi Akasaka, Ahmad Fallahpour, Yinwen Cao, Amirhossein Mohajerin-Ariaei, Carsten Langrock, Fatemeh Alishahi, Joseph D. Touch, Changjing Bao, Peicheng Liao, Alan E. Willner, Moshe Tur
Publikováno v:
Journal of Lightwave Technology. 36:440-446
A scheme for reconfigurable channel slicing and stitching is proposed and experimentally demonstrated. By employing optical nonlinear wave mixing and a coherent frequency comb, a single channel spectrum is sliced and redistributed into fragmented fre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82c4b131fc3c3133cb27b47047374644
https://doi.org/10.1109/jlt.2017.2750168
https://doi.org/10.1109/jlt.2017.2750168
Autor:
Yinwen Cao, Morteza Ziyadi, Joseph D. Touch, Ahmed Almaiman, Alan E. Willner, Amirhossein Mohajerin-Ariaei
Publikováno v:
Nanophotonics, Vol 6, Iss 3, Pp 507-530 (2017)
Optical computing is needed to support Tb/s in-network processing in a way that unifies communication and computation using a single data representation that supports in-transit network packet processing, security, and big data filtering. Support for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17e9860ea57e6118ed5ff27ab3b68fd9
https://doaj.org/article/5fa5bed872c34a3e94d53e02401d1764
https://doaj.org/article/5fa5bed872c34a3e94d53e02401d1764
Autor:
Moshe Tur, Amirhossein Mohajerin-Ariaei, C. Langrock, Ahmed Almaiman, Dmitry Starodubov, Alan E. Willner, Yinwen Cao, Morteza Ziyadi, Peicheng Liao, Fatemeh Alishahi, Ahmad Fallahpour, Joseph D. Touch, Changjing Bao, Bishara Shamee, Martin M. Fejer
Publikováno v:
OFC
A tunable optical QPSK to PAM4 converter is experimentally demonstrated. The proposed method maps four symbols of QPSK signal to four different amplitude levels which can be directly detected in photo-diode. Open eyes are obtained for the detected PA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47cafe5762fb301dbaa3f9a28d459c3c
https://doi.org/10.1364/ofc.2018.w2a.22
https://doi.org/10.1364/ofc.2018.w2a.22
Autor:
Moshe Tur, Alan E. Willner, Bishara Shamee, Yinwen Cao, Ahmad Fallahpour, Ahmed Almaiman, Martin M. Fejer, Amirhossein Mohajerin-Ariaei, C. Langrock, Peicheng Liao, Fatemeh Alishahi, Joseph D. Touch, Changjing Bao
Publikováno v:
OFC
Using an all-optical method and without multi-channel detection, the inter-channel interferences of overlapped WDM data channels are mitigated simultaneously. We experimentally demonstrate performance improvement for 20-Gbaud QPSK overlapped channels
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46df8c33c88553ff69750e624f6905d4
https://doi.org/10.1364/ofc.2018.w3e.1
https://doi.org/10.1364/ofc.2018.w3e.1
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
Autor:
Youichi Akasaka, Tadashi Ikeuchi, Ahmed Almaiman, Fatemeh Alishahi, Alan E. Willner, Joseph D. Touch, Hao Song, Changjing Bao, Peicheng Liao, Yinwen Cao, Dmitry Starodubov, Amirhossein Mohajerin-Ariaei, Ahmad Fallahpour
Publikováno v:
ECOC
A FBG-based pump-phase-shifter is used in the Raman-assisted PSA. By actively tuning the FBG central-wavelength to enable pump phase optimization, up-to-5.6dB signal gain is observed. An improvement of ∼6% EVM and ∼4dB system sensitivity is obser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::574451d20f1671ed4adee83ae51e2e15
https://doi.org/10.1109/ecoc.2017.8346222
https://doi.org/10.1109/ecoc.2017.8346222
Autor:
Morteza Ziyadi, Amirhossein Mohajerin-Ariaei, Carsten Langrock, Asher J. Willner, Moshe Tur, Alan E. Willner, Tadashi Ikeuchi, Steven R. Wilkinson, Yinwen Cao, Youichi Akasaka, Peicheng Liao, Ahmad Fallahpour, Ahmed Almaiman, Fatemeh Alishahi, Joseph D. Touch, Changjing Bao, Bishara Shamee, Martin M. Fejer
Publikováno v:
Optics letters. 42(9)
An all-optical pilot-tone-based self-homodyne detection scheme using nonlinear wave mixing is experimentally demonstrated. Two scenarios are investigated using (1) multiple wavelength-division-multiplexed channels with sufficient power of the pilot t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be6ee9fcc97c12dfe30d42f6b1efdd5f
https://pubmed.ncbi.nlm.nih.gov/28454174
https://pubmed.ncbi.nlm.nih.gov/28454174