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Chromatic dispersion compensators via highly dispersive photonic crystals
Journal of Applied Physics, 2005We calculated the phase index np, group index ng, and chromatic dispersion D from photonic band structures in two-dimensional (2D) photonic crystals consisting of triangular-arrayed cylindrical rods. We found that both the np and ng increase rapidly as the frequency of a propagating electromagnetic wave approaches the gap-band edges due to Bragg ...
S. Y. Yang, C. T. Chang
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Chromatic Dispersion Dependence of GAWBS Noise
2020 Opto-Electronics and Communications Conference (OECC), 2020We describe the chromatic dispersion dependence of GAWBS-noise compensation with pilot tone. We clarified experimentally that the group delay between the signal and pilot tone should be less than a half-period of GAWBS noise mode.
Kozo Sato +5 more
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Polarization mode dispersion analysis in fibre chromatic dispersion compensators
OFC/IOOC . Technical Digest. Optical Fiber Communication Conference, 1999, and the International Conference on Integrated Optics and Optical Fiber Communication, 2003Analysis of polarization-mode dispersion in linearly chirped fiber chromatic dispersion compensators has been carried out with several types of fibers. The importance of fiber birefringence as well as fabrication process has been pointed out.
I. Riant, J. Gourhant, P. Sansonetti
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Chromatic dispersion monitoring in optical systems
2016 IEEE International Conference on Engineering and Technology (ICETECH), 2016In this paper, we have to demonstrate the chromatic dispersion [CD] monitoring by a differential phase shift method using Kerr phase interrogator. Kerr phase interrogator, which investigates the phase shift between two sinusoidally modulated optical signals utilizing Kerr effect that are carried by two different laser wavelengths.
T. Shanthi Priya, I. Muthumani
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PMD-insensitive chromatic dispersion monitoring
31st European Conference on Optical Communications (ECOC 2005), 2005This paper investigates the influence of PMD on the measurement of chromatic dispersion (CD), proposes and experimentally demonstrates a PMD-insensitive CD monitoring technique using the optically sideband filtering and RF power ratio detection. (2 pages)
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On-line simultaneous monitoring of polarization mode dispersion and chromatic dispersion
Applied Optics, 2006We have developed new expressions for power fading and average power fading owing to polarization mode dispersion (PMD) and chromatic dispersion in terms of the angle of precession of the output state of polarization about the PMD vector. Based on these expressions, a simple and novel pilot-tone-based technique for simultaneous monitoring of chromatic ...
G, Ning +4 more
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Fiber Bragg gratings and chromatic dispersion
SPIE Proceedings, 2003Since the late 1990s, steady advances in wavelength division multiplexing (WDM) technology have provided better ways to increase the capacity of optical networks. Three significant trends become evident in long-haul transmission system, namely the continual increase in the number of dense WDM channels, the increase in data rates from 2.5 Gb/s to today ...
Richard L. Lachance +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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Chromatic dispersion effects in coherent absolute ranging
Optics Letters, 1992Multiple-wavelength interferometers and chirped-frequency coherent laser radars use the variation of interferometric phase as a function of wavelength to measure optical path lengths. Since these instruments generally include a number of dispersive components, the group-velocity index must be included in the path-length calculation. A simple experiment
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Chromatic dispersion in rectangular geometry waveguides
Optical Engineering, 1999We calculate the chromatic dispersion of rectangular geom- etry waveguides and focus on the conditions for obtaining zero chromatic dispersion at a wavelength of 1.55 mm. We consider single-mode waveguides fabricated from six distinct compositions of silica-based ma- terials whose dispersive characteristics are modeled by use of a Sell- meier relation.
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