all-optical pulse switching
Roles of heating and helicity in ultrafast all optical magnetization switching in TbFeCo
... Above all, the reversal occurs only above a critical temperature corresponding to that of the linear reversal model; reversal on this timescale cannot occur via precessional mechanisms, which occur on the ...
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All-optical switching in granular ferromagnets caused by magnetic circular dichroism
... Finally we consider the efect of the helicity of the laser pulse on the evolution of the magnetisation starting from a state of full magnetic saturation. he results are given in Fig. 6, which shows the variation ...
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Conditions for thermally induced all optical switching in ferrimagnetic alloys: Modeling of TbCo
... In 2007 Stanciu et al. reported that in GdFeCo disordered alloys it was possible, not only to change, but also to reverse magnetization using circularly polarized femtosecond laser pulses [6]. This observation lead to a ...
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Novel all optical switching and processing techniques for optical networking
... parabolic pulse seeding into a conventional highly-nonlinear fibre [140] have shown flat spectral-density over more than 20 ...The optical gating of the linearly-chirped pulses at the above speed (160 Gb/s) ...
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A Historical Narrative of Study of Fiber Grating Solitons
... in optical fiber by sustained exposure of the core to the interference pattern produced by oppositely propagating modes of argon-ion laser radiation was first reported in ...in all-optical ...
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Tb/s All-Optical Nonlinear Switching Using SOA Based Mach-Zehnder Interferometer
... control pulse conditions with 2 Tb/s input data signal and ...data pulse remains unchirped in all ...MZI switching dynamics for a data pulse rate of 2Tb/s and a control pulse ...
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Experimental Investigation of Polarization Effects in Semiconductor Optical Amplifiers and Implications for All Optical Switching
... for optical telecommunications at data rates over 100 Gb/s, the dynamics are studied in the pi- cosecond ...the pulse width of the input signal is ...
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Ability of dynamic holography in self assembled hybrid nanostructured silica films for all optical switching and multiplexing
... in all-optical time-to-space converters and proved successful at increasing the optical response of the intercalated dyes to a point that would make these composite films applicable for use as the ...
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All optical pulse reshaping and retiming systems incorporating pulse shaping fiber Bragg grating
... short optical pulses. The technique relies on linear pulse shaping of the data pulses into rectangular pulses, performed using an SSFBG, and subse- quent optical switching with synchronous ...
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Roles of heating and helicity in ultrafast all optical magnetization switching in TbFeCo
... of optical switching presented in the literature, as well as differing measurements with different conclusions as to the importance of the thermal or nonthermal ...laser pulse? The ultrafast ...
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All optical TDM data demultiplexing at 80 Gbit/s with significant timing jitter tolerance using a fiber Bragg grating based rectangular pulse switching technology
... nonlinear optical loop mirror (NOLM) demultiplexing scheme that provides good ultrafast performance and tolerance to timing-jitter of either, or both, of the control and data signals has been demonstrated ...
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A grating based OCDMA coding:decoding system incorporating a nonlinear optical loop mirror for improved code recognition and noise reduction
... nonlinear optical loop mirror (NOLM) within a time-spreading DS-OCDMA system to act as a fast saturable absorber with which to improve the quality of the code recognition ...an optical fiber followed by ...
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New generation of devices for all-optical communications
... short switching windows can be ...data pulse energy requirements make it well-suited for typical communication signal ...to all-optical switching as they can be integrated using a ...
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Integrated nonlinear Mach Zehnder for 40 Gbit/s all-optical switching
... From these three equations, one can observe that TPA and FCA strongly influence the loss of cw signals through Cross Absorption Modulation (XAM) as well [13]. For this reason, the optimal power of the control signal has ...
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Comparison Of Fractional Order PID And Fuzzy-Logic-Controlled PV Cascaded-Re-Boost-Inverter System With Improved Dynamic Response
... Sin-WooLee [1] proposed‘-a high-advance up-coupled- inductor course-boost-dc-dc converter with lossless-latent- snubber‘. -In spite of the fact that a-traditional course-boost- converter had bigger-voltage ...
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1. Nonlinearity in optical switching
... three optical fields with carrier frequencies ω1 ,ω2 ,ω3 copropagate inside the fiber simultaneously, generates a fourth field with frequency ω4 which is related to other frequencies by a relation ...in ...
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High nonlinearity dispersion shifted lead silicate holey fibers for efficient 1 µm pumped supercontinuum generation
... the pulse energies required for the initial stages of SC generation down to the 100-pJ regime—a pulse-energy regime that can readily be ac- cessed directly from mode-locked Yb-doped fiber laser ...
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Timing Shift of Optical Pulses Due to Inter-Channel Cross-Talk
... on pulse timing shift and optical power due to the propagation of optical pulse through a nonlinear dispersive ...the pulse distortion through the fiber is the eye opening ...
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A Study on Optical Switching: An Efficient Switching Tool for Optical Communication Network
... digital optical switch and Interferometric switch. The digital optical switch is driven by the threshold voltage applied to the switch while the interferometric switches need a specific driving voltage to ...
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Optical fibre digital pulse position modulation assuming a Gaussian received pulse shape
... Optical fibre digital pulse position modulation assuming a Gaussian received pulse shape Optoelectronics [see also IEE Proceedings Optoelectronics], IEE Proceedings J Optical fibre digital pulse posit[.] ...
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