All-optical sampling based on two-photon absorption in a semiconductor microcavity for high-speed OTDM
Citation:
Maguire, P.J.; Barry, L.P.; Krug, T.; Lynch, M.; Bradley, A.L.; Donegan, J.F.; Folliot, H., All-optical sampling based on two-photon absorption in a semiconductor microcavity for high-speed OTDM, Proceedings of SPIE, Opto-Ireland 2005: Optoelectronics, Photonic Devices, and Optical Networks, Dublin, Ireland, 4th April, John G. McInerney, Gerard Farrell, David M. Denieffe, Liam P. Barry, Harold S. Gamble, Padraig J. Hughes, Alan Moore, 5825, SPIE, 2005, 316-325Download Item:
Abstract:
Future high-speed optical communications networks operating at data rates in excess of 100Gbit/s per channel
will require a sensitive and ultrafast technique for precise optical signal monitoring.1 The standard way of
characterising high-speed optical signals to use a fast photodetector in conjunction with a high-speed oscilloscope.
However, this method is limited to a maximum data rate of approximately 40Gbit/s. An alternative is to employ
all-optical sampling techniques based on ultrafast optical nonlinearities present in optical fibres, optical crystals
and semiconductors. One such nonlinearity is the optical-to-electrical process of Two-Photon Absorption (TPA)
in a semiconductor. This paper presents an optical sampling technique based on TPA in a specially designed
semiconductor microcavity. By incorporating the microcavity design, we are able to enhance the TPA efficiency
to a level that can be used for high-speed optical sampling.
Sponsor
Grant Number
Enterprise Ireland
Author's Homepage:
http://people.tcd.ie/jdoneganhttp://people.tcd.ie/bradlel
Description:
PUBLISHEDDublin, Ireland
Author: Donegan, John; Bradley, Louise
Other Titles:
Proceedings of SPIEOpto-Ireland 2005: Optoelectronics, Photonic Devices, and Optical Networks
Publisher:
SPIEType of material:
Conference PaperCollections
Series/Report no:
5825Availability:
Full text availableKeywords:
Optical Communications, Optical Time Division Multiplexing, Hybrid WDM/OTDM, Optical Sampling, Two-Photon Absorption, MicrocavityDOI:
http://dx.doi.org/10.1117/12.604835Metadata
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