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Article: Time-division-multiplexed observation bandwidth for ultrafast parametric spectro-temporal analyzer
Title | Time-division-multiplexed observation bandwidth for ultrafast parametric spectro-temporal analyzer |
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Authors | |
Keywords | Arbitrary waveform Emission spectrums Initial conditions Stokes and anti-Stokes Temporal focusing |
Issue Date | 2019 |
Publisher | Optical Society of America: Open Access Journals. The Journal's web site is located at http://www.opticsexpress.org |
Citation | Optics Express, 2019, v. 27 n. 21, p. 30441-30448 How to Cite? |
Abstract | Parametric spectro-temporal analyzer (PASTA) has been demonstrated as a powerful tool for ultrafast spectrum measurement with superior frame rate and resolution. Compared with other time-stretch-based counterparts, the temporal focusing mechanism enlarges the initial condition and enables the observation of arbitrary waveform, especially the emission spectrum. However, due to the limited conversion bandwidth of the parametric mixing–based time-lens, the observation bandwidth of PASTA is constrained within the C (conventional) band, which hinders its practical applications. To overcome this constraint, both stokes and anti-stokes conversions of the parametric mixing process are leveraged, and the concept of time division multiplexing (TDM) is introduced to ensure their separability. Therefore, the TDM-based PASTA system successfully demultiplexes the C band and L (long) band spectra in two adjacent temporal frames. It is capable of reconstructing the wavelength-to-time sequence for arbitrary waveform over a record 58-nm observation bandwidth, which can be further improved by optimizing the filters and amplifiers. Meanwhile, both of these two bands achieve 20-pm resolution, 10-MHz frame rate, and –30-dBm sensitivity. Moreover, this TDM concept can also be applied to other parametric mixing–based temporal imaging systems to enlarge the working wavelength band, such as temporal magnification. |
Persistent Identifier | http://hdl.handle.net/10722/290176 |
ISSN | 2023 Impact Factor: 3.2 2023 SCImago Journal Rankings: 0.998 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Yang, N | - |
dc.contributor.author | Chen, L | - |
dc.contributor.author | Li, L | - |
dc.contributor.author | Li, Y | - |
dc.contributor.author | Zhang, C | - |
dc.contributor.author | Wang, Y | - |
dc.contributor.author | Wong, KKY | - |
dc.contributor.author | Zhang, X | - |
dc.date.accessioned | 2020-10-22T08:23:07Z | - |
dc.date.available | 2020-10-22T08:23:07Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Optics Express, 2019, v. 27 n. 21, p. 30441-30448 | - |
dc.identifier.issn | 1094-4087 | - |
dc.identifier.uri | http://hdl.handle.net/10722/290176 | - |
dc.description.abstract | Parametric spectro-temporal analyzer (PASTA) has been demonstrated as a powerful tool for ultrafast spectrum measurement with superior frame rate and resolution. Compared with other time-stretch-based counterparts, the temporal focusing mechanism enlarges the initial condition and enables the observation of arbitrary waveform, especially the emission spectrum. However, due to the limited conversion bandwidth of the parametric mixing–based time-lens, the observation bandwidth of PASTA is constrained within the C (conventional) band, which hinders its practical applications. To overcome this constraint, both stokes and anti-stokes conversions of the parametric mixing process are leveraged, and the concept of time division multiplexing (TDM) is introduced to ensure their separability. Therefore, the TDM-based PASTA system successfully demultiplexes the C band and L (long) band spectra in two adjacent temporal frames. It is capable of reconstructing the wavelength-to-time sequence for arbitrary waveform over a record 58-nm observation bandwidth, which can be further improved by optimizing the filters and amplifiers. Meanwhile, both of these two bands achieve 20-pm resolution, 10-MHz frame rate, and –30-dBm sensitivity. Moreover, this TDM concept can also be applied to other parametric mixing–based temporal imaging systems to enlarge the working wavelength band, such as temporal magnification. | - |
dc.language | eng | - |
dc.publisher | Optical Society of America: Open Access Journals. The Journal's web site is located at http://www.opticsexpress.org | - |
dc.relation.ispartof | Optics Express | - |
dc.rights | Optics Express. Copyright © Optical Society of America: Open Access Journals. | - |
dc.rights | © 2019 [year] Optical Society of America]. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved. | - |
dc.subject | Arbitrary waveform | - |
dc.subject | Emission spectrums | - |
dc.subject | Initial conditions | - |
dc.subject | Stokes and anti-Stokes | - |
dc.subject | Temporal focusing | - |
dc.title | Time-division-multiplexed observation bandwidth for ultrafast parametric spectro-temporal analyzer | - |
dc.type | Article | - |
dc.identifier.email | Wong, KKY: kywong@eee.hku.hk | - |
dc.identifier.authority | Wong, KKY=rp00189 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1364/OE.27.030441 | - |
dc.identifier.pmid | 31684291 | - |
dc.identifier.scopus | eid_2-s2.0-85073540591 | - |
dc.identifier.hkuros | 316966 | - |
dc.identifier.volume | 27 | - |
dc.identifier.issue | 21 | - |
dc.identifier.spage | 30441 | - |
dc.identifier.epage | 30448 | - |
dc.identifier.isi | WOS:000489954500085 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 1094-4087 | - |