An optical amplifier having a uniform gain profile uses a photonic crystal to tune the density-of-states of a gain medium so as to modify the light emission rate between atomic states. The density-of-states of the gain medium is tuned by selecting the size, shape, dielectric constant, and spacing of a plurality of microcavity defects in the photonic crystal. The optical amplifier is particularly useful for the regeneration of DWDM signals in long optical fibers.

Jan 23, 20230 citations

arXiv:1009.2708 · Physical Review A

Optical amplification enhancement in photonic crystals

Riccardo Sapienza, Marco Leonetti, Luis S. Froufe‐Pérez, Juan Francisco Galisteo‐López, Claudio Conti, Cefe López

Published Feb 4, 2011• 19 citations

arXiv HTML PDF

Abstract

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symmetry directions of the face-centered-cubic photonic crystal. These results are theoretically explained by directional variations of the density of states, providing a quantitative connection between density of the states and light amplification.

DOI: 10.1103/physreva.83.023801

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