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arXiv · 1308.3288

Ultra-short pulse transmission in a passive white light cavity based on chirped Bragg gratings

Alexander Pavlov·Mike Lee·Saito Fujimoto
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Abstract

It is widely accepted that Bragg reflection from linearly chirped Bragg gratings (LCBGs) can compensate for a chromatic dispersion by reflecting different wavelengths at different location along the axis of the gratings for ultra-short pulses. In this paper, we studied the possibility of making use of such a dispersion-compensating property to construct a white light cavity (WLC). A pair of LCBGs is suggested as the reflectors of the cavity. The analytical and numerical analysis shows that the reflection by a LCBG does not solely occur at the position where Bragg condition is reached. The accumulated effect of multiple scatterings at different locations inside the LCBG produces a positive group delay, preventing the WLC to be realized with simple LCBG.

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Alexander Pavlov, Mike Lee, Saito Fujimoto. 2013-08-15. Ultra-short pulse transmission in a passive white light cavity based on chirped Bragg gratings. https://arxiv.org/abs/1308.3288

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