Slow-light photonic crystal switches and modulators

Daryl M. Beggs; Thomas P. White; Tobias Kampfrath; Kobus Kuipers; Thomas F. Krauss

doi:10.1117/12.840948

Slow-light photonic crystal switches and modulators

Daryl M. Beggs, Thomas P. White, Tobias Kampfrath, Kobus Kuipers, Thomas F. Krauss

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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 mu m 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.

Original language	English
Title of host publication	Silicon Photonics V
Editors	JA Kubby, GT Reed
Place of Publication	BELLINGHAM
Publisher	SPIE
Pages	46060N
Number of pages	12
Volume	7606
ISBN (Print)	978-0-8194-8002-6
DOIs	https://doi.org/10.1117/12.840948
Publication status	Published - Feb 2010
Event	Conference on Silicon Photonics V - San Francisco Duration: 24 Jan 2010 → 27 Jan 2010

Publication series

Name	Proceedings of SPIE-The International Society for Optical Engineering
Volume	7606
ISSN (Print)	0277-786X

Conference

Conference	Conference on Silicon Photonics V
City	San Francisco
Period	24/01/10 → 27/01/10

Access to Document

10.1117/12.840948

UK Silicon Photonics EP/F001622/1: UK Silicon Photonics
Krauss, T. (PI)
EPSRC
1/06/08 → 31/05/13
Project: Standard

Cite this

@inproceedings{c79c67cbc2854dfd8572a3965f61989f,

title = "Slow-light photonic crystal switches and modulators",

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 mu m 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.",

author = "Beggs, {Daryl M.} and White, {Thomas P.} and Tobias Kampfrath and Kobus Kuipers and Krauss, {Thomas F.}",

year = "2010",

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doi = "10.1117/12.840948",

language = "English",

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volume = "7606",

series = "Proceedings of SPIE-The International Society for Optical Engineering",

publisher = "SPIE",

pages = "46060N",

editor = "JA Kubby and GT Reed",

booktitle = "Silicon Photonics V",

address = "United States",

note = "Conference on Silicon Photonics V ; Conference date: 24-01-2010 Through 27-01-2010",

}

Beggs, DM, White, TP, Kampfrath, T, Kuipers, K & Krauss, TF 2010, Slow-light photonic crystal switches and modulators. in JA Kubby & GT Reed (eds), Silicon Photonics V. vol. 7606, Proceedings of SPIE-The International Society for Optical Engineering, vol. 7606, SPIE, BELLINGHAM, pp. 46060N, Conference on Silicon Photonics V, San Francisco, 24/01/10. https://doi.org/10.1117/12.840948

Slow-light photonic crystal switches and modulators. / Beggs, Daryl M.; White, Thomas P.; Kampfrath, Tobias et al.
Silicon Photonics V. ed. / JA Kubby; GT Reed. Vol. 7606 BELLINGHAM: SPIE, 2010. p. 46060N (Proceedings of SPIE-The International Society for Optical Engineering; Vol. 7606).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Slow-light photonic crystal switches and modulators

AU - Beggs, Daryl M.

AU - White, Thomas P.

AU - Kampfrath, Tobias

AU - Kuipers, Kobus

AU - Krauss, Thomas F.

PY - 2010/2

Y1 - 2010/2

N2 - 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 mu m 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.

AB - 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 mu m 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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DO - 10.1117/12.840948

M3 - Conference contribution

SN - 978-0-8194-8002-6

VL - 7606

T3 - Proceedings of SPIE-The International Society for Optical Engineering

SP - 46060N

BT - Silicon Photonics V

A2 - Kubby, JA

A2 - Reed, GT

PB - SPIE

CY - BELLINGHAM

T2 - Conference on Silicon Photonics V

Y2 - 24 January 2010 through 27 January 2010

ER -

Slow-light photonic crystal switches and modulators

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UK Silicon Photonics EP/F001622/1: UK Silicon Photonics

Cite this