Abstract
We demonstrate efficient nonlinear functions using silicon nanophotonic structures. In the ultrasmall core of the waveguides and cavities, nonlinear phenomena are significantly enhanced. Applying the two-photon absorption effect, we have confirmed all optical modulation, in which the modulation speed is improved to around 50 ps by eliminating free carriers. Applying the four-wave-mixing effect, we have achieved high-efficiency wavelength conversion. The conversion efficiency is -11 dB, and the efficiency will be further improved by eliminating free carriers. Using the fourwave-mixing effect, we have also realized a low-noise entangled photon pair source. The source does not need a refrigeration system for noise reduction, which is a great advantage for practical application.
Original language | English |
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Article number | 71341R |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 7134 |
DOIs | |
Publication status | Published - 2008 |
Externally published | Yes |
Event | Passive Components and Fiber-based Devices V - Hangzhou, China Duration: 2008 Oct 27 → 2008 Oct 30 |
Keywords
- All optical modulation
- Entangled photon generation
- Optical nonlinearity
- Photonic crystal cavity
- Silicon photonics
- Silicon wire waveguide
- Wavelength conversion
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering