The Experts below are selected from a list of 23160 Experts worldwide ranked by ideXlab platform
Geoffrey L. Burdge - One of the best experts on this subject based on the ideXlab platform.
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RZ wavelength conversion with reduced Power Penalty using a semiconductor-optical-amplifier/fiber-grating hybrid device
IEEE Photonics Technology Letters, 1998Co-Authors: Pak Shing Cho, D. Mahgerefteh, Julius Goldhar, Geoffrey L. BurdgeAbstract:We show that a fiber Bragg grating filter improves the bit-error-rate (BER) performance of a semiconductor-optical-amplifier for return-to-zero (RZ) wavelength conversion. A 14-dB reduction in Power Penalty was obtained at 10.6 Gb/s.
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rz wavelength conversion with reduced Power Penalty using a semiconductor optical amplifier fiber grating hybrid device
IEEE Photonics Technology Letters, 1998Co-Authors: Pak Shing Cho, D. Mahgerefteh, Julius Goldhar, Geoffrey L. BurdgeAbstract:We show that a fiber Bragg grating filter improves the bit-error-rate (BER) performance of a semiconductor-optical-amplifier for return-to-zero (RZ) wavelength conversion. A 14-dB reduction in Power Penalty was obtained at 10.6 Gb/s.
J.c. Cartledge - One of the best experts on this subject based on the ideXlab platform.
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pulse distortion and Power Penalty induced by sinusoidal amplitude and phase response ripples for gaussian pulses
Journal of Lightwave Technology, 2008Co-Authors: N Cheng, J.c. CartledgeAbstract:The frequency responses of wavelength-selective optical components often exhibit ripples in the amplitude and/or phase. These ripples can lead to signal distortion and hence a degradation in system performance. The pulse distortion induced by sinusoidal amplitude and phase response ripples is derived for chirped and unchirped Gaussian pulses, and closed-form expressions are presented for the Power Penalty in system performance. The analysis shows that the amplitude and phase response ripples have a similar impact on the transmitted signal, and that the Power Penalty induced by these ripples depends on the chirp and pulsewidth of the transmitted signal. The combined effect of the characteristics of the transmitted signal and ripple parameters on system performance is discussed in detail. It is shown that the dependence of the maximum Power Penalty on the chirp parameter differs for amplitude and phase response ripples. The results of the theoretical analysis are in good agreement with numerical simulations.
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Power Penalty due to the amplitude and phase response ripple of a dispersion compensating fiber bragg grating for chirped optical signals
Journal of Lightwave Technology, 2006Co-Authors: N Cheng, J.c. CartledgeAbstract:A concise method is presented for rigorously calculating the Power Penalty due to the combined implications of the amplitude and phase response ripples of a dispersion compensating fiber Bragg grating and the chirp of the transmitted optical signal. By using trigonometric series to represent the ripples, the calculated Penalty can be positive or negative, as obtained in numerical simulations and measurements, depending on the signal chirp and ripple within the modulated signal bandwidth. An approximate upper bound on the Power Penalty is also presented as an extension of earlier results that always yield positive penalties. Calculated and measured results are compared for two 10-Gb/s return-to-zero (RZ) signals with distinct chirp properties
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pulse distortion and Power Penalty induced by sinusoidal amplitude and phase response ripples for gaussian pulses
Photonics North, 2005Co-Authors: N Cheng, J.c. CartledgeAbstract:Wavelength-selective optical components used in WDM optical communication systems often exhibit a transfer function with amplitude and phase ripples. These ripples can lead to signal distortion and performance degradation. The pulse distortion induced by sinusoidal amplitude and phase response ripples is derived for Gaussian pulses, and concise results are presented for the Power Penalty in system performance. The analysis shows that the amplitude and phase response ripples have a similar impact on the transmitted signal, and the Power Penalty induced by these ripples depends on the chirp and pulse width of the transmitted signal. The combined effect of the characteristics of the transmitted signal and the ripple parameters on the system performance is discussed in detail. Numerical simulations show a good agreement with the theoretical analysis.
Pak Shing Cho - One of the best experts on this subject based on the ideXlab platform.
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RZ wavelength conversion with reduced Power Penalty using a semiconductor-optical-amplifier/fiber-grating hybrid device
IEEE Photonics Technology Letters, 1998Co-Authors: Pak Shing Cho, D. Mahgerefteh, Julius Goldhar, Geoffrey L. BurdgeAbstract:We show that a fiber Bragg grating filter improves the bit-error-rate (BER) performance of a semiconductor-optical-amplifier for return-to-zero (RZ) wavelength conversion. A 14-dB reduction in Power Penalty was obtained at 10.6 Gb/s.
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rz wavelength conversion with reduced Power Penalty using a semiconductor optical amplifier fiber grating hybrid device
IEEE Photonics Technology Letters, 1998Co-Authors: Pak Shing Cho, D. Mahgerefteh, Julius Goldhar, Geoffrey L. BurdgeAbstract:We show that a fiber Bragg grating filter improves the bit-error-rate (BER) performance of a semiconductor-optical-amplifier for return-to-zero (RZ) wavelength conversion. A 14-dB reduction in Power Penalty was obtained at 10.6 Gb/s.
S.r. Henion - One of the best experts on this subject based on the ideXlab platform.
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Power Penalty from amplified spontaneous emission in spatial diversity links
Conference on Lasers and Electro-Optics International Quantum Electronics Conference, 2009Co-Authors: Todd G. Ulmer, S.r. Henion, Frederick G. WaltherAbstract:We investigate the Power Penalty caused by excess amplified spontaneous emission in an optically preamplified receiver for use with a multi-wavelength spatial diversity transmitter to mitigate atmospheric fading.
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Power Penalty From Amplified Spontaneous Emission in Spatial Diversity Links for Fade Mitigation
IEEE Photonics Technology Letters, 2009Co-Authors: Todd G. Ulmer, S.r. Henion, Frederick G. WaltherAbstract:We investigate the Power Penalty caused by excess amplified spontaneous emission in an optically preamplified receiver for a communications link where a multiwavelength spatial diversity transmitter is used to mitigate atmospheric fading. We compare measured receiver sensitivity for a four-wavelength 10.7-Gb/s nonreturn-to-zero on-off-keyed system to theory using both the Gaussian noise approximation and chi square statistics.
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Dispersion-induced Power Penalty in fiber-Bragg-grating WDM filter cascades
Optical Fiber Communication Conference. Technical Digest Postconference Edition. Trends in Optics and Photonics Vol.37 (IEEE Cat. No. 00CH37079), 2000Co-Authors: M. Kuznetsov, S.r. Henion, N.m. Froberg, C. Reinke, C. Fennelly, K.a. RauschenbachAbstract:In wavelength-division-multiplexed optical networks signals pass through cascades of multiplexing/demultiplexing filters. We present experimental measurements and theoretical modeling of transmission Power Penalty at 10 Gbps due to dispersion slope of fiber-Bragg-grating and thin-film cascades.
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Power Penalty for optical signals due to dispersion slope in WDM filter cascades
IEEE Photonics Technology Letters, 1999Co-Authors: M. Kuznetsov, S.r. Henion, N.m. Froberg, K.a. RauschenbachAbstract:We calculate the receiver Power Penalty due to the accumulated dispersion slope of optical filter cascades in wavelength-division-multiplexed optical networks. For flat-top fiber Bragg grating and thin-film filters, dispersive rather than amplitude filter effects dominate the cascade Power Penalty, which increases with dispersion slope and signal frequency detuning from the cascade zero-dispersion point. The dispersion slope of these filters varies as the inverse cube of their bandwidth, using increased penalties for narrow filters in systems with small channel spacing, For a 60-GHz-wide Bragg grating filter with a 1.3-ns/nm/sup 2/ dispersion slope, a cascade of 26 filters can be tolerated at 10 Gbit/s with /spl plusmn/5 GHz allowed detuning. Optically preamplified receivers have significantly larger dispersion penalties than thermal-noise-limited receivers.
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Power Penalty for optical signals due to dispersion slope in WDM filter cascades
1999 IEEE LEOS Annual Meeting Conference Proceedings. LEOS'99. 12th Annual Meeting. IEEE Lasers and Electro-Optics Society 1999 Annual Meeting (Cat. N, 1Co-Authors: M. Kuznetsov, S.r. Henion, N.m. Froberg, K.a. RauschenbachAbstract:The Power Penalty due to the dispersion slope of WDM filters limits the number of cascaded filters and restricts the allowed signal-filter detuning. This dispersive Penalty is significantly larger for optically-preamplified receivers. The results in this paper apply to systems with arbitrary bit rates. When dispersive penalties become a limitation, chirped Bragg filters with compensated dispersion slope or dispersionless waveguide-grating-router and Mach-Zehnder filters can be used.
N Cheng - One of the best experts on this subject based on the ideXlab platform.
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pulse distortion and Power Penalty induced by sinusoidal amplitude and phase response ripples for gaussian pulses
Journal of Lightwave Technology, 2008Co-Authors: N Cheng, J.c. CartledgeAbstract:The frequency responses of wavelength-selective optical components often exhibit ripples in the amplitude and/or phase. These ripples can lead to signal distortion and hence a degradation in system performance. The pulse distortion induced by sinusoidal amplitude and phase response ripples is derived for chirped and unchirped Gaussian pulses, and closed-form expressions are presented for the Power Penalty in system performance. The analysis shows that the amplitude and phase response ripples have a similar impact on the transmitted signal, and that the Power Penalty induced by these ripples depends on the chirp and pulsewidth of the transmitted signal. The combined effect of the characteristics of the transmitted signal and ripple parameters on system performance is discussed in detail. It is shown that the dependence of the maximum Power Penalty on the chirp parameter differs for amplitude and phase response ripples. The results of the theoretical analysis are in good agreement with numerical simulations.
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Power Penalty due to the amplitude and phase response ripple of a dispersion compensating fiber bragg grating for chirped optical signals
Journal of Lightwave Technology, 2006Co-Authors: N Cheng, J.c. CartledgeAbstract:A concise method is presented for rigorously calculating the Power Penalty due to the combined implications of the amplitude and phase response ripples of a dispersion compensating fiber Bragg grating and the chirp of the transmitted optical signal. By using trigonometric series to represent the ripples, the calculated Penalty can be positive or negative, as obtained in numerical simulations and measurements, depending on the signal chirp and ripple within the modulated signal bandwidth. An approximate upper bound on the Power Penalty is also presented as an extension of earlier results that always yield positive penalties. Calculated and measured results are compared for two 10-Gb/s return-to-zero (RZ) signals with distinct chirp properties
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pulse distortion and Power Penalty induced by sinusoidal amplitude and phase response ripples for gaussian pulses
Photonics North, 2005Co-Authors: N Cheng, J.c. CartledgeAbstract:Wavelength-selective optical components used in WDM optical communication systems often exhibit a transfer function with amplitude and phase ripples. These ripples can lead to signal distortion and performance degradation. The pulse distortion induced by sinusoidal amplitude and phase response ripples is derived for Gaussian pulses, and concise results are presented for the Power Penalty in system performance. The analysis shows that the amplitude and phase response ripples have a similar impact on the transmitted signal, and the Power Penalty induced by these ripples depends on the chirp and pulse width of the transmitted signal. The combined effect of the characteristics of the transmitted signal and the ripple parameters on the system performance is discussed in detail. Numerical simulations show a good agreement with the theoretical analysis.
