Ultracompact and low-power optical switch based on silicon photonic crystals

Optics Letters
Daryl M BeggsThomas F Krauss

Abstract

Switching light is one of the most fundamental functions of an optical circuit. As such, optical switches are a major research topic in photonics, and many types of switches have been realized. Most optical switches operate by imposing a phase shift between two sections of the device to direct light from one port to another, or to switch it on and off, the major constraint being that typical refractive index changes are very small. Conventional solutions address this issue by making long devices, thus increasing the footprint, or by using resonant enhancement, thus reducing the bandwidth. We present a slow-light-enhanced optical switch that is 36 times shorter than a conventional device for the same refractive index change and has a switching length of 5.2 microm.

Citations

Dec 19, 2013·Scientific Reports·Aron OpheijL Kuipers
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Feb 23, 2010·Optics Express·Junghyun ParkByoungho Lee
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Aug 20, 2010·Optics Express·Dirk Jan DikkenL Kobus Kuipers
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Aug 16, 2017·Optics Letters·Sebastian A SchulzRobert W Boyd
Jan 16, 2021·Light, Science & Applications·Luis Torrijos-MoránJaime García-Rupérez

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