Abstract
We propose a simple lossless method for the generation of flat-topped intensity pulses bursts from a single utrashort pulse. We have found optimum solutions corresponding to different numbers of cavities and burst pulses, showing that the proposed all-pass structures of optical cavities, properly designed, can generate close to flat-topped pulse busts.
Highlights
Researchers have explored several strategies for generating periodic pulse trains at repetition rates beyond those achievable by mode locking or direct modulation, since techniques for creating high repetition rate optical clock sources are highly sought after for future ultrahighspeed optical communication systems
In this Letter, we propose a method for generating flat-topped envelope optical pulse bursts of from a single ultrashort pulse using all-pass structures of optical cavities, where energy efficiency is nearly unity because of applying phase-only filtering
We have proposed all-pass optical structures composed of coupled cavities for the generation of flat-topped intensity pulse bursts with high energetic efficiency
Summary
Researchers have explored several strategies for generating periodic pulse trains at repetition rates beyond those achievable by mode locking or direct modulation, since techniques for creating high repetition rate optical clock sources are highly sought after for future ultrahighspeed optical communication systems. Received 26 May 2009; revised 8 Jul 2009; accepted 10 Jul 2009; published 27 Jul 2009 3 August 2009 / Vol 17, No 16 / OPTICS EXPRESS 13875 phase-only filtering methods [1,2,3,4,5,6,7], mainly based on temporal Talbot effect [7], are highly desirable because of its high energy efficiency Another method consists in generating optical pulse bursts from a single ultrashort pulse [8,9,10,11], with special interest in flat-topped envelope, and phase-only filtering methods [8,9].
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