All-optical switching scheme using a three-level atomic system within photonic crystals

Hiroyuki Nihei; Atsushi Okamoto

doi:10.1117/12.447111

30 October 2001 All-optical switching scheme using a three-level atomic system within photonic crystals

Hiroyuki Nihei, Atsushi Okamoto

Proceedings Volume 4598, Photonics Technology in the 21st Century; (2001) https://doi.org/10.1117/12.447111
Event: International Symposium on Photonics and Applications, 2001, Singapore, Singapore

Abstract

We propose all-optical switching schemes using a single three-level atomic system placed within a 3D photonic crystal that exhibits a complete 3D photonic band gap. The optical schemes we propose can be classified into two types with respect to a physical process that causes the switching effect. One switching type is mediated by changing an atom-field coupling strength. The other switching type is mediated by controlling quantum interference. Furthermore, we consider conditions of realizing a wide range of signals, which contributes to an improvement of the Signal to Noise ratio. The phases and strengths of the external laser fields required for the all-optical switching are revealed. Next, we estimate their switching times. Using these results, we propose the fastest scheme for every configuration of the atomic system, which is important for realizing a high-speed optical memory or switching device on an atomic scale that can be used in novel optical integrated systems, such as quantum computers.

Citation Download Citation

Hiroyuki Nihei and Atsushi Okamoto "All-optical switching scheme using a three-level atomic system within photonic crystals", Proc. SPIE 4598, Photonics Technology in the 21st Century, (30 October 2001); https://doi.org/10.1117/12.447111

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