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Conference Paper: Parametric spectro-temporal analyzer (PASTA) for ultrafast optical performance monitoring

TitleParametric spectro-temporal analyzer (PASTA) for ultrafast optical performance monitoring
Authors
Issue Date2014
PublisherSPIE - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xml?WT.svl=mddp2
Citation
Optical Metro Networks and Short-Haul Systems VI, San Francisco, CA., 4-6 February 2014. In Proceedings of SPIE - International Society for Optical Engineering, 2014, v. 9008, article no. 90080K How to Cite?
AbstractUltrafast optical spectrum monitoring is one of the most challenging tasks in observing ultrafast phenomena, such as the spectroscopy, dynamic observation of the laser cavity, and spectral encoded imaging systems. However, conventional method such as optical spectrum analyzer (OSA) spatially disperses the spectrum, but the space-to-time mapping is realized by mechanical rotation of a grating, so are incapable of operating at high speed. Besides the spatial dispersion, temporal dispersion provided by dispersive fiber can also stretches the spectrum in time domain in an ultrafast manner, but is primarily confined in measuring short pulses. In view of these constraints, here we present a real-time spectrum analyzer called parametric spectro-temporal analyzer (PASTA), which is based on the time-lens focusing mechanism. It achieves a 100-MHz frame rate and can measure arbitrary waveforms. For the first time, we observe the dynamic spectrum of an ultrafast swept-source: Fourier domain mode-locked (FDML) laser, and the spectrum evolution of a laser cavity during its stabilizing process. In addition to the basic single-lens structure, the multi-lens configurations (e.g. telescope or wide-angle scope) will provide a versatile operating condition, which can zoom in to achieve 0.05-nm resolution and zoom out to achieve 10-nm observation range, namely 17 times zoom in/out ratio. In view of the goal of achieving spectrum analysis with fine accuracy, PASTA provides a promising path to study the real-time spectrum of some dynamic phenomena and non-repetitive events, with orders of magnitude enhancement in the frame rate over conventional OSAs. © 2013 Copyright SPIE.
DescriptionSession 9: Short-Reach Metro and Access Networks and Related Components I
Persistent Identifierhttp://hdl.handle.net/10722/204022
ISBN
ISSN
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, Cen_US
dc.contributor.authorWong, KKYen_US
dc.date.accessioned2014-09-19T20:01:39Z-
dc.date.available2014-09-19T20:01:39Z-
dc.date.issued2014en_US
dc.identifier.citationOptical Metro Networks and Short-Haul Systems VI, San Francisco, CA., 4-6 February 2014. In Proceedings of SPIE - International Society for Optical Engineering, 2014, v. 9008, article no. 90080Ken_US
dc.identifier.isbn9780819499219-
dc.identifier.issn0277-786X-
dc.identifier.urihttp://hdl.handle.net/10722/204022-
dc.descriptionSession 9: Short-Reach Metro and Access Networks and Related Components I-
dc.description.abstractUltrafast optical spectrum monitoring is one of the most challenging tasks in observing ultrafast phenomena, such as the spectroscopy, dynamic observation of the laser cavity, and spectral encoded imaging systems. However, conventional method such as optical spectrum analyzer (OSA) spatially disperses the spectrum, but the space-to-time mapping is realized by mechanical rotation of a grating, so are incapable of operating at high speed. Besides the spatial dispersion, temporal dispersion provided by dispersive fiber can also stretches the spectrum in time domain in an ultrafast manner, but is primarily confined in measuring short pulses. In view of these constraints, here we present a real-time spectrum analyzer called parametric spectro-temporal analyzer (PASTA), which is based on the time-lens focusing mechanism. It achieves a 100-MHz frame rate and can measure arbitrary waveforms. For the first time, we observe the dynamic spectrum of an ultrafast swept-source: Fourier domain mode-locked (FDML) laser, and the spectrum evolution of a laser cavity during its stabilizing process. In addition to the basic single-lens structure, the multi-lens configurations (e.g. telescope or wide-angle scope) will provide a versatile operating condition, which can zoom in to achieve 0.05-nm resolution and zoom out to achieve 10-nm observation range, namely 17 times zoom in/out ratio. In view of the goal of achieving spectrum analysis with fine accuracy, PASTA provides a promising path to study the real-time spectrum of some dynamic phenomena and non-repetitive events, with orders of magnitude enhancement in the frame rate over conventional OSAs. © 2013 Copyright SPIE.-
dc.languageengen_US
dc.publisherSPIE - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xml?WT.svl=mddp2-
dc.relation.ispartofProceedings of SPIE - International Society for Optical Engineeringen_US
dc.rightsProceedings of SPIE - International Society for Optical Engineering. Copyright © S P I E - International Society for Optical Engineering.-
dc.rightsCopyright 2014 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleParametric spectro-temporal analyzer (PASTA) for ultrafast optical performance monitoringen_US
dc.typeConference_Paperen_US
dc.identifier.emailWong, KKY: kywong04@hkucc.hku.hken_US
dc.identifier.authorityWong, KKY=rp00189en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1117/12.2039092-
dc.identifier.scopuseid_2-s2.0-84896789773-
dc.identifier.hkuros236245en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84896789773&selection=ref&src=s&origin=recordpage-
dc.identifier.volume9008-
dc.identifier.isiWOS:000333931700018-
dc.publisher.placeUnited States-
dc.customcontrol.immutablesml 160112 - amend-

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