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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/37326

Title: All-optical sampling based on two-photon absorption in a semiconductor microcavity for high-speed OTDM
Author: BRADLEY, LOUISE
DONEGAN, JOHN FRANCIS
Sponsor: Enterprise Ireland
Author's Homepage: http://people.tcd.ie/jdonegan
http://people.tcd.ie/bradlel
Keywords: Optical Communications
Optical Time Division Multiplexing
Hybrid WDM/OTDM
Optical Sampling
Two-Photon Absorption
Microcavity
Issue Date: 2005
Publisher: SPIE
Citation: 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, edited by John G. McInerney, Gerard Farrell, David M. Denieffe, Liam P. Barry, Harold S. Gamble, Padraig J. Hughes, Alan Moore , 5825, SPIE, 2005, pp316-325
Series/Report no.: 5825
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.
Description: PUBLISHED
URI: http://dx.doi.org/10.1117/12.604835
http://hdl.handle.net/2262/37326
Related links: http://spiedl.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=PSISDG005825000001000316000001&idtype=cvips&prog=normal
Appears in Collections:Physics (Scholarly Publications)

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