All-optical switching in silicon-on-insulator photonic wire nano-cavities | Zendy

Michele Belotti | Zendy; Mattéo Galli | Zendy; Dario Gerace | Zendy; Lucio Claudio Andreani | Zendy; G. Guizzetti | Zendy; Ahmad Rifqi Md Zain | Zendy; Nigel P. Johnson | Zendy; Marc Sorel | Zendy; R.M. De La Rue | Zendy

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All-optical switching in silicon-on-insulator photonic wire nano-cavities

Author(s) -

Michele Belotti,

Mattéo Galli,

Dario Gerace,

Lucio Claudio Andreani,

G. Guizzetti,

Ahmad Rifqi Md Zain,

Nigel P. Johnson,

Marc Sorel,

R.M. De La Rue

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.001450

Subject(s) - materials science , optics , optoelectronics , optical switch , photonics , silicon on insulator , nanosecond , laser , photonic crystal , modulation (music) , switching time , silicon , physics , acoustics

We report on experimental demonstration of all-optical switching in a silicon-on-insulator photonic wire nanocavity operating at telecom wavelengths. The switching is performed with a control pulse energy as low as approximately 0.1 pJ on a cavity device that presents very high signal transmission, an ultra-high quality-factor, almost diffraction-limited modal volume and a footprint of only 5 microm(2). High-speed modulation of the cavity mode is achieved by means of optical injection of free carriers using a nanosecond pulsed laser. Experimental results are interpreted by means of finite-difference time-domain simulations. The possibility of using this device as a logic gate is also demonstrated.

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