Results 201 to 210 of about 11,328 (260)
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2013
In diesem Kapitel behandeln wir den wichtigen Spezialfall des barotropen Modells, und zwar in seiner einfachsten Form fur ein inkompressibles Fluid. Das denken wir uns verwirklicht durch eine Wasserschicht konstanter Dichte. Daher mussen wir zuerst zeigen, ob dies ein brauchbares Modell fur die gasformige kompressible Atmosphare ist.
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In diesem Kapitel behandeln wir den wichtigen Spezialfall des barotropen Modells, und zwar in seiner einfachsten Form fur ein inkompressibles Fluid. Das denken wir uns verwirklicht durch eine Wasserschicht konstanter Dichte. Daher mussen wir zuerst zeigen, ob dies ein brauchbares Modell fur die gasformige kompressible Atmosphare ist.
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On the Effect of FWM in Coherent Optical OFDM Systems
OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference, 2008We derive the channel capacity of CO-OFDM systems limited by FWM. Simulations confirm that Peak-to-Average-Power-Ratio reduction techniques are suitable for FWM mitigation. These techniques can utilize the decreased capacity to significantly increase the system reach.
Bernhard Goebel +3 more
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XPM and FWM in OFDM optical systems
LEOS 2001. 14th Annual Meeting of the IEEE Lasers and Electro-Optics Society (Cat. No.01CH37242), 2002Summary form only given. Cross-phase modulation (XPM) and four-wave mixing (FWM) are two of the most important sources of nonlinear crosstalk in multi-wavelength fiber-optic systems and their effects are generally proportional to signal optical power and inversely proportional to the channel spacing. In OFDM and OSCM systems, the channel spacing can be
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System Characterization of a SOA-FWM Wavelength Converter
Frontiers in Optics 2011/Laser Science XXVII, 2011An empirical characterization of SOA-FWM wavelength conversion is presented. The converted signal BER was analyzed for OOK transmission rates up to 12.5 Gb/s and different input channel optical powers.
E. C. Magalhães +4 more
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2004
Four-Wave-Mixing (FWM), or sometimes four-photon-mixing (FPM), describes a nonlinear optical effect at which four waves or photons interact with each other due to the third order nonlinearity of the material. As a result, new waves with sum and difference frequencies are generated during the propagation in the waveguide.
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Four-Wave-Mixing (FWM), or sometimes four-photon-mixing (FPM), describes a nonlinear optical effect at which four waves or photons interact with each other due to the third order nonlinearity of the material. As a result, new waves with sum and difference frequencies are generated during the propagation in the waveguide.
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Study of FWM effects in WDM system: A review
2017 4th International Conference on Opto-Electronics and Applied Optics (Optronix), 2017In this review paper we have given an overview of FWM effect in WDM systems and studied non-linear effect that affects the fiber communication performance. Non-linear effects like four wave mixing, cross-phase modulation, self phase modulation, stimulated raman scattering and stimulated brillouin scattering.
Diksha Sharma, Mandeep Kaur
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Exciton–exciton correlation effects on FWM in GaN
physica status solidi (b), 2003AbstractBound and unbound biexcitons in a free‐standing bulk GaN are investigated by time‐integrated and spectrally‐resolved four‐wave mixing measurements, where the formation of hetero‐biexcitons that consist of A and B excitons (XXAB) as well as A biexcitons and their unbound biexciton are clearly observed.
Satoru Adachi +6 more
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Algorithms for FWM-aware routing and wavelength assignment
Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678), 2004This work presents a study on the impact of the four wave mixing in dynamic optical networks. We have proposed two algorithms for routing and wavelength assignment based on the limitations imposed by four wave mixing crosstalk. When the efficiency of the effect is not very high, the algorithms present a good performance in order to minimize the four ...
I.E. Fonseca +3 more
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Impact of PMD on FWM crosstalk in WDM systems
Optical Fiber Communication Conference. Technical Digest Postconference Edition. Trends in Optics and Photonics Vol.37 (IEEE Cat. No. 00CH37079), 2002The impact of polarization-mode dispersion (PMD) on four-wave mixing crosstalk in wavelength division multiplexed fiber systems is quantified experimentally. The benefit of using polarization-multiplexed channels for suppression of crosstalk is reduced for links with even modest PMD.
H. Sunnerud +3 more
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Spectrum Sensing Applications of FWM-based Optical Cyclostationary Processor
Optical Fiber Communication Conference (OFC) 2020, 2020We demonstrate a large instantaneous bandwidth optical cyclostationary processor that computes the spectral correlation function. Post-processing of experimentally measured SCFs is applied for waveform characterization, specifically baud rate and pulse-shaping roll-off estimation of QAM signals.
Jerrod S. Langston +2 more
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