Affiliation:
1. Nanjing University
2. University of Arkansas
Abstract
It is a challenge for all-optical switching to simultaneous achieve ultralow power consumption, broad bandwidth and high extinction ratio. We experimentally demonstrate an ultralow-power all-optical switching by exploiting chiral interaction between light and optically active material in a Mach-Zehnder interferometer. We achieve switching extinction ratio of 20.0 ± 3.8 and 14.7 ± 2.8 dB with power cost of 66.1 ± 0.7 and 1.3 ± 0.1 fJ/bit, respectively. The bandwidth of our all-optical switching is about 4.2 GHz. Moreover, our all-optical switching has the potential to be operated at few-photon level. Our scheme paves the way towards ultralow-power and ultrafast all-optical information processing.
Funder
National Natural Science Foundation of China
National Key Research and Development Program of China
Program for Innovative Talents and Entrepreneurs in Jiangsu
Subject
Atomic and Molecular Physics, and Optics
Cited by
4 articles.
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