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Applied Physics Letters / Volume 92 / Issue 1 / INTERDISCIPLINARY AND GENERAL PHYSICS

Appl. Phys. Lett. 92, 014106 (2008); http://dx.doi.org/10.1063/1.2831005 (3 pages)

Optical switching based on high-speed phased array optical beam steering

Mona Jarrahi, R. Fabian W. Pease, David A. B. Miller, and Thomas H. Lee

Electrical Engineering, Stanford University, California 94305, USA

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(Received 16 November 2007; accepted 12 December 2007; published online 10 January 2008)

We present a high-speed optical switching scheme based on phased array optical beam steering, and analyze the trade-off between the switch power efficiency, signal-to-noise-ratio, number of output channels, and switching speed. For the proof of concept, a two-channel optical switch has been fabricated, using a high-speed GaAs/AlGaAs multiple quantum well phase modulator. We demonstrate a beam deflection angle of 100 mrad at the fastest ever reported speed of 18 GHz, consuming 1.8 mW. A signal-to-noise ratio of 8 dB is measured at each output channel. The relatively low signal-to-noise ratio can be further improved by increasing the number of phased arrays.

© 2008 American Institute of Physics

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KEYWORDS and PACS

Keywords

aluminium compounds, beam steering, gallium arsenide, gallium compounds, III-V semiconductors, optical modulation, optical switches, phase modulation, semiconductor quantum wells

PACS

  • 42.65.Pc

    Optical bistability, multistability, and switching, including local field effects

  • 42.65.Re

    Ultrafast processes; optical pulse generation and pulse compression

  • 42.70.Nq

    Other nonlinear optical materials; photorefractive and semiconductor materials

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.2831005

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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    References

    T. Pertsch, T. Zentgraf, U. Peschel, A. Bräuer, and F. Lederer, Appl. Phys. Lett. 80, 3247 (2002)APPLAB000080000018003247000001.


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