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Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Optimization of superradiant photonic-crystal lasers

N. S. Ginzburg, E. R. Kocharovskaya, Alexander S. Sergeev

Published Jun 15, 2007• 1 citation
Publisher

Abstract

We show that a two-level active sample of one-dimensional photonic crystal can generate chaotic sequence of extremely short pulses in the absence of mirrors. Numerical analysis and optimization of this promising superradiant laser is presented.
DOI
10.1117/12.753102

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We find and investigate numerically the self-starting superradiant lasing and the strongly modified superfluorescence regimes in a two-level active sample of one-dimensional photonic crystal (responsible for the resonance wave back-scattering) for various values of the light bandgap and the amplification bandwidth. The simplest oscillators of this type are the quantum-well injection heterostructures and the laser fibers with active colour centres where one-dimensional Bragg back-scattering can be fabricated artificially by means of a periodic modulation of the cladding layers. Of special interest is the case where the single-site reflections from the facets of a sample are weaker than the total distributed reflections owing to the resonance wave back-scattering either introduced artificially or present in an inverted two-level medium due to a photonic crystal structure.
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