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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 26 — Dec. 22, 2008
  • pp: 21821–21834

Optically powered fiber networks

M. Röger, G. Böttger, M. Dreschmann, C. Klamouris, M. Huebner, A. W. Bett, J. Becker, W. Freude, and J. Leuthold  »View Author Affiliations


Optics Express, Vol. 16, Issue 26, pp. 21821-21834 (2008)
http://dx.doi.org/10.1364/OE.16.021821


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Abstract

Optically powered networks are demonstrated. Heterogeneous subscribers having widely varying needs with respect to power and bandwidth can be effectively controlled and optically supplied by a central office. The success of the scheme relies both on power-efficient innovative hardware and on a novel low-energy medium access control protocol. We demonstrate a sensor network with subscribers consuming less than 1 µW average power, and an optically powered high-speed video link transmitting data at a bitrate of 100 Mbit/s.

© 2008 Optical Society of America

OCIS Codes
(040.5350) Detectors : Photovoltaic
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4250) Fiber optics and optical communications : Networks
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(060.4256) Fiber optics and optical communications : Networks, network optimization

History
Original Manuscript: September 16, 2008
Revised Manuscript: November 12, 2008
Manuscript Accepted: November 13, 2008
Published: December 17, 2008

Virtual Issues
Optics for Energy (2008) Optics Express

Citation
Wolfgang Freude, Moritz Roeger, Gunnar Boettger, Michael Dreschmann, Michael Huebner, Christos Klamouris, Andreas Bett, Juergen Becker, and Juerg Leuthold, "Optically powered fiber networks," Opt. Express 16, 21821-21834 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-26-21821


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References

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  21. In this paper, the term "polling" is used to indicate a CO listening to and/or interrogating subscribers.
  22. Our wavelength-optimized photovoltaic converter has a high conversion efficiency of up to 50 % depending on illumination power and load [´ 13]. For low optical input powers, a pin-photodiode with very small saturation current is optimum.
  23. Mixed signal microcontroller, Texas Instruments MSP430-family. At 3.6 V and in low-power mode LPM3-VLO ("sleep mode", internal inaccurate clock active) we measured a supply current of 0.5 µA, in LPM3-LFXT1 ("snooze mode", external accurate quartz clock active) it was 1 µA. Further modes are memory retention mode LPM4 (0.1 µA) and active mode (390 µA). An interrupt event can wake up the device from any of the low-power modes, service the request, and restore back to the low-power mode on return from the interrupt program.
  24. Microcontroller UART tutorial: http://www.societyofrobots.com/microcontroller_uart.shtml.

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