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Experimental realization of optomechanically induced non-reciprocity
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Journal Article
Experimental realization of optomechanically induced non-reciprocity
2016
Overview
Non-magnetic non-reciprocal transparency and amplification is experimentally achieved by optomechanics using a whispering-gallery microresonator. The idea may lead to integrated all-optical isolators or non-reciprocal phase shifters.
Non-reciprocal devices, such as circulators and isolators, are indispensable components in classical and quantum information processing in integrated photonic circuits
1
. Aside from these applications, the non-reciprocal phase shift is of fundamental interest for exploring exotic topological photonics
2
, such as the realization of chiral edge states and topological protection
3
,
4
. However, incorporating low-optical-loss magnetic materials into a photonic chip is technically challenging
5
. In this study we experimentally demonstrate non-magnetic non-reciprocity using optomechanical interactions in a whispering gallery microresonator, as proposed in a previous work
6
. Optomechanically induced non-reciprocal transparency and amplification are observed and a non-reciprocal phase shift of up to 40° is also demonstrated. The underlying mechanism of optomechanically induced non-reciprocity has great potential for all-optical controllable isolators and circulators, as well as non-reciprocal phase shifters in integrated photonic chips.
Publisher
Nature Publishing Group UK,Nature Publishing Group
Subject
