Results 211 to 220 of about 36,385 (261)
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Fiber Bragg gratings for pure dispersion-slope compensation
Optics Letters, 2003Single-fiber Bragg gratings designed to compensate for pure third-order dispersion are demonstrated. The devices are designed by use of a layer-peeling inverse-scattering technique and exhibit dispersion profiles across their reflection bandwidths of -20, +/- 40, and -225 ps/nm2 over bandwidths of 4.5, 6, and 3 nm, respectively.
Ibsen, Morten, Feced, Ricardo
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Feed-Forward Slope Compensated PFC for Chaos Control
Journal of Circuits, Systems and Computers, 2015Based on the dual-loop control peak current mode power factor correction (PFC) converter, a feed-forward slope compensation method is proposed, which could regulate the compensated slope real-time and suppress the loop perturbation, thus controlling chaos of the system for better stability.
Yani Li +3 more
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Current-Mode Converters with Adjustable-Slope Compensating Ramp
APCCAS 2006 - 2006 IEEE Asia Pacific Conference on Circuits and Systems, 2006Sub-harmonic oscillation is a well-known problem in DC/DC converters with current mode control. To avoid this problem, a method to achieve adjustable-slope compensation is proposed. This method makes the compensating ramp slope appropriate for various output voltage levels. Besides solving the sub-harmonic oscillation problem, this method can also make
Cheng-Chung Yang +2 more
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Compensation ability evaluation of part-compensation lens based on slope asphericity
SPIE Proceedings, 2010The accurate evaluation on the compensation range of part-compensation lens is beneficial to guide the design of part-compensation lens and realize fast testing on many aspheric surfaces. The prior evaluation methods based on asphericity have error judge occurred, thus reduce the compensation range of part-compensation lens negatively, further ...
Feng Xie +4 more
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Optics Letters, 2003
We report for what is believed to be the first time the use of transmissive fiber Bragg grating-based Fabry-Perot etalons for tunable dispersion compensation and dispersion-slope compensation. The resulting device has a number of advantages, such as low cost, ease of fabrication, full optical fiber compatibility, and simplicity.
Xuewen, Shu, Kate, Sugden
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We report for what is believed to be the first time the use of transmissive fiber Bragg grating-based Fabry-Perot etalons for tunable dispersion compensation and dispersion-slope compensation. The resulting device has a number of advantages, such as low cost, ease of fabrication, full optical fiber compatibility, and simplicity.
Xuewen, Shu, Kate, Sugden
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Journal of Lightwave Technology, 1998
A 20 Gb/s-based soliton wavelength division multiplexed (WDM) transmission experiments using periodic dispersion compensation and dispersion slope compensation were demonstrated. Accumulated dispersion slope was compensated with two methods. The first method was periodical individual dispersion compensation.
I. Morita +4 more
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A 20 Gb/s-based soliton wavelength division multiplexed (WDM) transmission experiments using periodic dispersion compensation and dispersion slope compensation were demonstrated. Accumulated dispersion slope was compensated with two methods. The first method was periodical individual dispersion compensation.
I. Morita +4 more
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Design of an oscillator with the simple slope compensation circuit
2009 4th IEEE Conference on Industrial Electronics and Applications, 2009A window-comparator CMOS oscillator with slope compensation ability, which can be applied in DC-DC converter control IC, is presented in this paper. And the slope compensation circuit, simple and effective, simplifies the whole circuit. Using 0.35µm CMOS model, the oscillator is simulated by Hspice, and the result indicates that the frequency of the ...
null Lu Gang, null Gao Wenlin
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Sea bottom slope compensation apparatus
The Journal of the Acoustical Society of America, 1984A sonar system for the detection of signals reflected from a sloping ocean bed in which a sample of the transmitted signal is modified to correspond to the received signal as modified by the sea bottom before both signals are applied to a correlation detector.
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Simultaneous Compensation of the Gain, Phase, and Phase-Slope
Journal of Dynamic Systems, Measurement, and Control, 2016This paper deals with the problem of simultaneous compensation of the gain, phase, and phase-slope at an arbitrary frequency by using a fractional-order lead/lag compensator. The necessary and sufficient conditions for feasibility of the problem are derived.
Vahid Badri, Mohammad Saleh Tavazoei
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OFC/IOOC . Technical Digest. Optical Fiber Communication Conference, 1999, and the International Conference on Integrated Optics and Optical Fiber Communication, 2003
The negative dispersion slope of dispersion-compensating fibers has been optimized by increasing the width of the depressed cladding. Simultaneous compensation and dispersion slope has been demonstrated on an actual link.
L. Gruner-Nielsen +4 more
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The negative dispersion slope of dispersion-compensating fibers has been optimized by increasing the width of the depressed cladding. Simultaneous compensation and dispersion slope has been demonstrated on an actual link.
L. Gruner-Nielsen +4 more
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