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Conference on Lasers and Electro-Optics

Propagation velocity of optical pulses in dispersive media

Aminul I. Talukder, Takatoshi Haruta, Makoto Tomita

Published Jan 1, 2005• 0 citations
Publisher
DOI
10.1109/iqec.2005.1560839

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We experimentally demonstrate the direct measurement of net group and reshaping delays for arbitrary optical pulses in dispersive media, verifying the earlier prediction of Peatross et al. [Phys. Rev. Lett. 84, 2370 (2000)]. Incoherent pulse propagation in an absorptionless system is well described by net group delay; even the medium causes a great deal of deformation in the transmitted pulse. However, in the case of phase modulated chirping pulses in a resonant absorber, the so-called superluminal or subluminal propagation velocity is strongly influenced by the reshaping delay.