Results 241 to 250 of about 352,490 (300)
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Research on dispersion-compensating fibre with negative dispersion slope
Czechoslovak Journal of Physics, 1999Theory of three-cladding dispersion-compensating fibre (DCF) with negative dispersion slope is analyzed, suggestions of adjusting various parameters in DCF are given, and a novel overclad technology is proposed. At the same time spinning when drawing was applied to lower polarization mode dispersion in DCF, and finally modified chemical vapour ...
Yandong Gong, Shuiseng Jian
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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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Compensator for dispersion and dispersion slope using fiber Bragg gratings
SPIE Proceedings, 2006We propose a novel method of tunable compensation for dispersion and dispersion slope based on a uniform fiber Bragg gratings (FBGs). A specially designed mechanical rotator and a metal beam with a thickness gradient can induce a nonlinear strain gradient along the length of the gratings so as to control the dispersion of the gratings and their ...
YoungJun Lee +5 more
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Non-zero dispersion shifted fiber with low dispersion slope
Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference on Communications,, 1999A new non-zero-dispersion-shifted fiber design is presented. These fibers, with low dispersion slope of 0.03 ps/nm/sup 2/-km and small negative dispersion from 1530 to 1620 nm, are ideal transmission medium for use in broad band DWDM systems.
null Luo Jie +4 more
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Hole-assisted lightguide fibers with small negative dispersion and low dispersion slope
Applied Optics, 2008A nonzero dispersion shifted fiber design based on hole-assisted lightguide fiber is presented. The proposed fiber has low dispersion slope around -0.01 ps/nm(2)-km and small negative dispersion values over the wavelength range from 1530 to 1620 nm. It can be used as a transmission medium for a long-haul dense wavelength-division-multiplexed system.
Hu, DJJ, Shum, P, Ren, G, Lu, C
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Sampled fiber grating based-dispersion slope compensator
IEEE Photonics Technology Letters, 1999We propose a novel design for a compact dispersion slope compensator based on sampled fiber Bragg gratings. By chirping the sample function in a sampled grating, we show that the dispersion slope can be controlled to match that of current transmission fibers.
W.H. Loh, F.Q. Zhou, J.J. Pan
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WDM transmission system using dispersion slope management
SPIE Proceedings, 1998In wavelength division multiplexing (WDM) transmission systems, it is a problem that the transmission characteristics are degraded due to the fiber nonlinear effects. These nonlinear effects are caused by the pulse collision due to the group velocity difference between different channels.
Kazushige Sawada +2 more
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Modules for chromatic dispersion and dispersion slope management
Optical Fiber Communication Conference and Exhibit, 2002Dispersion management of high-speed, broadband, long-distance networks calls for continuous full-slope matching of all DWDM channels, as well as low insertion loss, low PMD and low sensitivity to non-linear effects. Dispersion compensation via the fundamental mode meets most requirements, but is inherently accompanied by very small effective areas ...
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FWM resonances in dispersion slope-matched and nonzero-dispersion fiber maps
IEEE Photonics Technology Letters, 2002We show that four-wave mixing (FWM) resonances can affect performance of selected channels within the dense wavelength-division-multiplexing band. The FWM resonances may cause a Q-factor penalty in excess of 1 dB. We develop an analytical model to predict the spectral location and the intensity of the resonances.
M. Manna, E.A. Golovchenko
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Integrated all-pass filters for tunable dispersion and dispersion slope compensation
IEEE Photonics Technology Letters, 1999New integrated optical all-pass filters are presented that can be used for tunable dispersion compensation, dispersion slope compensation, and as building blocks in tunable bandpass filters. The dispersion slope compensation capability is demonstrated using ring resonators in /spl Delta/=2% Ge-doped silica planar waveguides. In addition, a tunable four-
C.K. Madsen +5 more
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