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  Slow-light photonic crystal switches and modulators

Beggs, D. M., White, T. P., Kampfrath, T., Kuipers, K., & Krauss, T. F. (2010). Slow-light photonic crystal switches and modulators. In Proceedings of SPIE.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0010-F649-3 Version Permalink: https://hdl.handle.net/21.11116/0000-0009-92E1-3
Genre: Conference Paper

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 Creators:
Beggs, Daryl M., Author
White, Thomas P., Author
Kampfrath, Tobias1, Author           
Kuipers, Kobus, Author
Krauss, Thomas F., Author
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              

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 Abstract: We discuss the performance of slow-light enhanced optical switches and modulators fabricated in silicon. The switch is based on photonic crystal waveguides in a directional coupler geometry, and the dispersion of the device is engineered to allow a switching length as short as 5 µm and rerouting of optical signals within 3 ps. The 3 ps switching time is demonstrated using free carriers in the silicon generated by the absorption of a femtosecond pump pulse. The modulator is based on a Mach-Zehnder interferometer configuration, with photonic crystal waveguides in each arm to act as phase-shifters. A flat-band slow-light region has been engineered in the phase-shifters to provide an extinction ratio in excess of 15 dB over the entire 11 nm bandwidth of the modulator device.

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Language(s): eng - English
 Dates: 2010-02-16
 Publication Status: Issued
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 476813
URI: http://spiedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PSISDG00760600000176060N000001&idtype=cvips&gifs=yes
DOI: 10.1117/12.840948
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Title: Silicon Photonics V
Place of Event: San Francisco, California, USA
Start-/End Date: 2010-01-24 - 2010-01-24

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Title: Proceedings of SPIE
  Alternative Title : Proc. SPIE
Source Genre: Proceedings
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Pages: - Volume / Issue: 7606 Sequence Number: 7606N Start / End Page: - Identifier: -