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OPTICAL FIBERS WITH NEGATIVE GROUP-VELOCITY DISPERSION IN THE VISIBLE
Optics News, 1988In 1978, Hill et al.1 observed that subjecting optical fibers to illumination with green light from an Ar+ ion laser for approximately ten minutes could establish a grating along the fiber core. Reflectivities as high as 90% were achieved, with a bandwidth of approximately 200 MHz.
C P, Kuo +4 more
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Group velocity and dispersion in nonlinear-optical fibers
Optics Letters, 1991Many of the nonlinear effects being studied in optical fibers depend critically on the dispersion characteristics of the fiber. We generalize the scalar form of Brown's identity for group velocity in a linear waveguide to deal with arbitrary nonlinearity and use this generalization to show that the dispersion characteristics of a step-index fiber at ...
R A, Sammut, C, Pask
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Group-velocity dispersion in a Bragg fiber
Journal of the Optical Society of America B, 2008A comprehensive study of the group-velocity dispersion of the TE, TM, and hybrid modes in a Bragg fiber is presented by showing many numerical examples. The dispersion can be represented in a simple form as the sum of the material and the waveguide dispersions under the quarter-wave stack condition.
Jun-Ichi Sakai, Kazuki Kuramitsu
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Group-velocity-dispersion-compensated propagation of short pulses in dispersive media
Optics Letters, 1996An optical scheme based on a single angularly dispersive element is proposed for canceling group-velocity dispersion for pulse propagation in dispersive media. It is demonstrated experimentally that a pulse duration of 100 fs is preserved throughout the travel of a 248-nm-pulse through a 75-mm-long fused-silica slab.
S, Szatmári, P, Simon, M, Feuerhake
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Femtosecond group-velocity dispersion in optics
Optical Society of America Annual Meeting, 1990Group velocity dispersion (GVD) is a well-known phenomenon that causes pulse broadening of femtosecond pulses propagating through dispersive materials. Femtosecond spectroscopy is becoming commonplace, and one must consider the effect of GVD in optical components such as mirrors, lenses, prisms, glass plates, glass cells, dielectric-coated mirrors ...
Yoshihiro Takiguchi, R. R. Alfano
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Normal group-velocity dispersion Kerr frequency comb
Optics Letters, 2011We show via numerical simulation that Kerr frequency combs can be generated in a nonlinear resonator characterized with normal group-velocity dispersion. We find the spectral shape of the comb and temporal envelope of the corresponding optical pulses formed in the resonator.
A B, Matsko, A A, Savchenkov, L, Maleki
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Dispersive pulse propagation and group velocity
The Journal of the Acoustical Society of America, 1993The propagation of pulses in a dissipative medium is investigated both theoretically and experimentally. The theoretical work is based on the dissipative dispersion integral, and the measurements are made in an air-filled periodic waveguide (i.e., the dispersion is Bloch wave dispersion).
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Dispersion analysis of a planar negative group velocity-transmission line
2007 European Radar Conference, 2007The existence of a negative group velocity region in a stub-loaded transmission line is investigated, focusing on the reshaping experienced by amplitude modulated signals propagating in it.
Monti, Giuseppina, Tarricone, Luciano
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Phonon dispersion sheets and group velocities in GaAs
Journal of Physics: Condensed Matter, 1990Phonon frequencies on two dispersion sheets for TA modes have been determined by inelastic neutron scattering on the (001) and the (011) planes at 12 K. Phonon group velocities for these phonons have been derived. The results are used to calculate heat transport properties.
B Dorner, D Strauch
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Group-velocity dispersion in chirped-pulse amplifier
Acta Physica Sinica (Overseas Edition), 1996By using the pulse propagation equation in the nonlinear dispersive medium, the effects of second- and third-order group-velocity dispersion on pulse evolution in the stretching, amplification and compressing are studied when chirped pulse amplification is applied to the pulses of a width
Shen Yu-zhen +3 more
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