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Conference Paper: Parametric spectro-temporal analyzer (PASTA) for ultrafast optical performance monitoring
Title | Parametric spectro-temporal analyzer (PASTA) for ultrafast optical performance monitoring |
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Authors | |
Keywords | and ultrafast imaging nonlinear fiber optics Space-time duality spectroscopy |
Issue Date | 2014 |
Publisher | SPIE - 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? |
Abstract | Ultrafast 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. |
Description | Session 9: Short-Reach Metro and Access Networks and Related Components I |
Persistent Identifier | http://hdl.handle.net/10722/204022 |
ISBN | |
ISSN | 2023 SCImago Journal Rankings: 0.152 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhang, C | en_US |
dc.contributor.author | Wong, KKY | en_US |
dc.date.accessioned | 2014-09-19T20:01:39Z | - |
dc.date.available | 2014-09-19T20:01:39Z | - |
dc.date.issued | 2014 | en_US |
dc.identifier.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 | en_US |
dc.identifier.isbn | 9780819499219 | - |
dc.identifier.issn | 0277-786X | - |
dc.identifier.uri | http://hdl.handle.net/10722/204022 | - |
dc.description | Session 9: Short-Reach Metro and Access Networks and Related Components I | - |
dc.description.abstract | Ultrafast 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.language | eng | en_US |
dc.publisher | SPIE - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xml?WT.svl=mddp2 | - |
dc.relation.ispartof | Proceedings of SPIE - International Society for Optical Engineering | en_US |
dc.rights | Copyright 2014 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited. This article is available online at https://doi.org/10.1117/12.2039092 | - |
dc.subject | and ultrafast imaging | - |
dc.subject | nonlinear fiber optics | - |
dc.subject | Space-time duality | - |
dc.subject | spectroscopy | - |
dc.title | Parametric spectro-temporal analyzer (PASTA) for ultrafast optical performance monitoring | en_US |
dc.type | Conference_Paper | en_US |
dc.identifier.email | Wong, KKY: kywong04@hkucc.hku.hk | en_US |
dc.identifier.authority | Wong, KKY=rp00189 | en_US |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1117/12.2039092 | - |
dc.identifier.scopus | eid_2-s2.0-84896789773 | - |
dc.identifier.hkuros | 236245 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-84896789773&selection=ref&src=s&origin=recordpage | - |
dc.identifier.volume | 9008 | - |
dc.identifier.isi | WOS:000333931700018 | - |
dc.publisher.place | United States | - |
dc.customcontrol.immutable | sml 160112 - amend | - |
dc.identifier.issnl | 0277-786X | - |