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Showing results for keying duan
Your search for Keqing Duan retrieved no results
10 Gbps DPSK transmission over free-space link in the mid-infrared.
Su Y, Wang W, Hu X, Hu H, Huang X, Wang Y, Si J, Xie X, Han B, Feng H, Hao Q, Zhu G, Duan T, Zhao W. Su Y, et al. Opt Express. 2018 Dec 24;26(26):34515-34528. doi: 10.1364/OE.26.034515. Opt Express. 2018. PMID: 30650874 Free article.
The eye diagram of regenerated 1550 nm signal is clear, and both for the on-off keying (OOK) and differential phase shift keying (DPSK) modulation, the power penalties compared with back to back (BTB) signals are lower than 3.5 dB measured at bit error ratio (BER) o …
The eye diagram of regenerated 1550 nm signal is clear, and both for the on-off keying (OOK) and differential phase shift keying …
Geometric shaping optimization of 64-APSK constellation in discrete nonlinear frequency division multiplexing systems.
Chen J, Chen Y, Duan Y, Wang X, Wang L, Tong T, Xiang Y, Zhao C, Liu D, Tang M. Chen J, et al. Opt Lett. 2021 Jul 15;46(14):3368-3371. doi: 10.1364/OL.430391. Opt Lett. 2021. PMID: 34264215
We experimentally demonstrated a geometric shaped (GS) 64-ary amplitude phase shift keying (64-APSK) eigenvalue transmission. The signal is modulated on the scatter coefficient of a single eigenvalue and linear minimum mean square error (LMMSE) estimator is used to reduce …
We experimentally demonstrated a geometric shaped (GS) 64-ary amplitude phase shift keying (64-APSK) eigenvalue transmission. The sig …
Vertical Charge Transport and Negative Transconductance in Multilayer Molybdenum Disulfides.
Liu Y, Guo J, He Q, Wu H, Cheng HC, Ding M, Shakir I, Gambin V, Huang Y, Duan X. Liu Y, et al. Nano Lett. 2017 Sep 13;17(9):5495-5501. doi: 10.1021/acs.nanolett.7b02161. Epub 2017 Aug 25. Nano Lett. 2017. PMID: 28823157
We further show that the unique NTC behavior can be explored for creating frequency doublers and phase shift keying circuits with only one transistor, greatly simplifying the circuit design compared to conventional technology....
We further show that the unique NTC behavior can be explored for creating frequency doublers and phase shift keying circuits with onl …
Adaptive-optics-based turbulence mitigation in a 400 Git/s free-space optical link by multiplexing Laguerre-Gaussian modes varying both radial and azimuthal spatial indices.
Su X, Jiang Z, Duan Y, Zhou H, Song H, Pang K, Liu C, Zou K, Zhang R, Song H, Hu N, Tur M, Willner AE. Su X, et al. Opt Lett. 2023 Dec 15;48(24):6452-6455. doi: 10.1364/OL.506270. Opt Lett. 2023. PMID: 38099771
In this Letter, we experimentally demonstrate a 400 Gbit/s quadrature-phase-shift-keyed (QPSK) FSO mode-division-multiplexing (MDM) coherent communication link through emulated turbulence using four Laguerre Gaussian (LG) modes with different radial and azimuthal indices ( …
In this Letter, we experimentally demonstrate a 400 Gbit/s quadrature-phase-shift-keyed (QPSK) FSO mode-division-multiplexing (MDM) c …
Automatic turbulence mitigation for coherent free-space optical links using crystal-based phase conjugation and fiber-coupled data modulation.
Zhou H, Duan Y, Song H, Su X, Zhao Z, Zou K, Song H, Zhang R, Boyd RW, Tur M, Willner AE. Zhou H, et al. Opt Lett. 2023 Apr 15;48(8):2194-2197. doi: 10.1364/OL.487133. Opt Lett. 2023. PMID: 37058675
Here, we demonstrate automatic turbulence mitigation in a 2-Gbit/s quadrature-phase-shift-keying (QPSK) coherent FSO link using degenerate four-wave-mixing (DFWM)-based phase conjugation and fiber-coupled data modulation. ...
Here, we demonstrate automatic turbulence mitigation in a 2-Gbit/s quadrature-phase-shift-keying (QPSK) coherent FSO link using degen …
Average bit error rate performance analysis of a low-density parity-check-coded orthogonal frequency-division multiplexing FSO system under Málaga distribution considering atmospheric attenuation and pointing errors.
Duan M, Wang P, Liu X, Li Y, Chen W, Li A. Duan M, et al. Appl Opt. 2018 Jul 1;57(19):5505-5513. doi: 10.1364/AO.57.005505. Appl Opt. 2018. PMID: 30117846
The average bit error rate (ABER) performance of low-density parity-check (LDPC)-coded orthogonal frequency-division multiplexing (OFDM) free-space optical communication system with K-ary quadrature amplitude modulation (QAM) and phase shift keying (PSK) modulation schemes …
The average bit error rate (ABER) performance of low-density parity-check (LDPC)-coded orthogonal frequency-division multiplexing (OFDM) fre …
Turbulence mitigation of four mode-division-multiplexed QPSK channels in a pilot-assisted self-coherent free-space optical link using a photodetector array and DSP-based channel demultiplexing.
Zhou H, Song H, Su X, Duan Y, Zou K, Zhang R, Tur M, Willner AE. Zhou H, et al. Opt Lett. 2024 Mar 1;49(5):1209-1212. doi: 10.1364/OL.511797. Opt Lett. 2024. PMID: 38426975
In this Letter, we demonstrate turbulence mitigation of four mode-division-multiplexing (MDM) quadrature-phase-shift-keying (QPSK) channels in a pilot-assisted self-coherent free-space optical (FSO) link using a photodetector (PD) array and digital signal processing (DSP)- …
In this Letter, we demonstrate turbulence mitigation of four mode-division-multiplexing (MDM) quadrature-phase-shift-keying (QPSK) ch …
Low-timing-jitter all-optical clock recovery for 40 Gbits/s RZ-DPSK and NRZ-DPSK signals using a passively mode-locked quantum-dot Fabry-Perot semiconductor laser.
Tang X, Cartledge JC, Shen A, Akrout A, Duan GH. Tang X, et al. Opt Lett. 2009 Apr 1;34(7):899-901. doi: 10.1364/ol.34.000899. Opt Lett. 2009. PMID: 19340164
We investigate experimentally all-optical clock recovery for return-to-zero (RZ) and nonreturn-to-zero (NRZ) differential phase-shift keying (DPSK) signals at 40 Gbits/s using a passively mode-locked quantum-dot Fabry-Perot (QD-FP) semiconductor laser. ...
We investigate experimentally all-optical clock recovery for return-to-zero (RZ) and nonreturn-to-zero (NRZ) differential phase-shift key …