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【期刊论文】A Performance Analysis of an All-Optical Clock Extraction Circuit Based on Fabry-Perot Filter
叶培大, Xiang Zhou, Member, IEEE, Chao Lu, Ping Shum, Hossam H.M. Shalaby, Senior Member, T.H. Cheng, and Peida Ye, Fellow
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 19, NO.5, MAY 2001,-0001,():
-1年11月30日
A performance analysis of an optical clock extraction circuit based on a Fabry-Perot filter (FPF) is presented. Two analytical methods, time-domain and frequency-domain analysis, are developed in this paper. Time-domain analysis shows that there is no phase jitter in the extracted optical clock if the free spectral range (FSR) of the FPF is exactly equal to the signal clock frequency. Based on this, we obtain an analytical expression for root mean square (rms) amplitude jitter of the extracted optical clock in time domain, in which we have taken the impacts of carrier frequency drift and carrier phase noise into account. When the FSR of the FPF deviates from the signal clock frequency, both phase jitter and amplitude jitter will occur in the extracted optical clock. In this situation, a more general frequency-domain method is developed to deal with the timing performance under the assumption that carrier phase noise is negligible. This method allows us to calculate both rms phase jitter and rms amplitude jitter of the extracted optical clock. Using the developed two methods, we present a detailed numerical investigation on the impacts of finesse of the FPF, carrier frequency drift, resonator detuning, carrier phase noise, and optical pulse chirp on the timing performance. Finally, the application of this circuit in multiwavelength clock recovery is discussed.
Amplitude jitter,, Fabry–Perot filter (, FPF), ,, multiwavelength clock extraction,, optical clock extraction,, optical tank circuit,, phase jitter.,
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【期刊论文】ALL-OPTICAL XOR LOGIC GATES: TECHNOLOGIES AND EXPERIMENT DEMONSTRATIONS
叶培大, Min Zhang, Ling Wang, and Peida Ye
IEEE Optical Communications, May 2005,-0001,():
-1年11月30日
This article reviews the current status and technologies of all-optical XOR gates. Various schemes with semiconductor optical amplifiers, particularly those associated with interferometric structures, are discussed and compared. Finally, the applications of all-optical XOR gates to emerging networks are explored, and the future direction is outlined.
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【期刊论文】Timing Jitter in Ultrahigh-Speed Dispersion-Managed Soliton Systems
叶培大, Fan Zhang and Peida Ye, Life Fellow, IEEE
IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 14, NO.10, OCTOBER 2002,-0001,():
-1年11月30日
An analytical theory is presented which demonstrates the timing jitter induced by amplifier noise in ultrahigh-speed dispersion- managed soliton systems when the Raman effect and thirdorder dispersion (TOD) are considered. The analysis indicates that Raman jitter remains a potential problem for picosecond and subpicosecond pulses. Positive residual TOD can enhance the timing jitter caused by the combined action of TOD and Raman effect, while vice versa for negative residual TOD. Dispersion-managed soliton, Raman effect, thirdorder dispersion, timing jitter, ultrahigh bit rates.
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【期刊论文】Design and analysis of all-optical XOR gate using SOA-based Mach-Zehnder interferometer
叶培大, Min Zhang a, *, Yongpeng Zhao b, Ling Wang a, Jian Wang a, Peida Ye a
Optics Communications 223 (2003) 301-308,-0001,():
-1年11月30日
The performance of ultra-fast all-optical XOR gate using two types semiconductor optical amplifier-based Mach-Zehnder interferometers (SOA-MZIs) is analyzed. Key parameters are optimized through numerical simulations. With properly designed parameters, 40 Gb/s all-optical XOR gate using SOA-MZI can be realized with fairly high performance. The results are helpful for parameter design of SOA-MZI-based XOR gate.
Optical communications, All-optical logic devices, All-optical XOR operation, Mach-Zehnder interferometer, Semiconductor optical amplifiers
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【期刊论文】Impact of Nonlinear Phase Noise on Direct-Detection DQPSK WDM Systems
叶培大, Xuetian Huang, Lei Zhang, Min Zhang, and Peida Ye, Fellow, IEEE
IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 17, NO.7, JULY 2005,-0001,():
-1年11月30日
The performance degradation of differential quadrature phase-shift keying (DQPSK) wavelength-division-multiplexed (WDM) systems due to self-phase modulation (SPM)- and cross-phase modulation (XPM)-induced nonlinear phase noise is evaluated in this letter. The XPM-induced nonlinear phase noise is approximated as Gaussian distribution and summed together with the SPM-induced nonlinear phase noise. We demonstrate that 10-Gb/s systems, whose walkoff length is larger than 40-Gb/s systems', are more sensitive to XPM-induced nonlinear phase noise than 40-Gb/s systems. Furthermore, DQPSK WDM systems show lower tolerance to both SPM- and XPM-induced nonlinear phase noise than differential phase-shift keying WDM systems.
Optical communication,, phase noise,, phase-shift keying.,
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