Nonlinearity- and dispersion- less integrated optical time magnifier based on a high-Q SiN microring resonator

Abstract The ability to measure optical signals with fast dynamics is of significant interest in many application fields. Usually, single-shot measurements of non-periodic signals can be enabled by time magnification methods. Like an optical lens in the spatial domain, a time magnifier, or a time le...

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Autores principales:	Arijit Misra, Stefan Preußler, Linjie Zhou, Thomas Schneider
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6cb2153abe9d47db87baf6502a14eeb8
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spelling	oai:doaj.org-article:6cb2153abe9d47db87baf6502a14eeb82021-12-02T15:09:49ZNonlinearity- and dispersion- less integrated optical time magnifier based on a high-Q SiN microring resonator10.1038/s41598-019-50691-22045-2322https://doaj.org/article/6cb2153abe9d47db87baf6502a14eeb82019-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-50691-2https://doaj.org/toc/2045-2322Abstract The ability to measure optical signals with fast dynamics is of significant interest in many application fields. Usually, single-shot measurements of non-periodic signals can be enabled by time magnification methods. Like an optical lens in the spatial domain, a time magnifier, or a time lens, stretches a signal in the time domain. This stretched signal can then be further processed with low bandwidth photonics and electronics. For a robust and cost-effective measurement device, integrated solutions would be especially advantageous. Conventional time lenses require dispersion and nonlinear optical effects. Integration of a strong dispersion and nonlinearities is not straightforward on a silicon photonics platform and they might lead to signal distortions. Here we present a time magnifier based on an integrated silicon nitride microring resonator and frequency-time coherence optical sampling, which requires neither a dispersion, nor a nonlinearity. Sampling of signals with up to 100 GHz bandwidth with a stretching factor of more than 100 is achieved using low bandwidth measurement equipment. Nevertheless, with already demonstrated integrated 100 GHz modulators, the method enables the measurement of signals with bandwidths of up to 400 GHz. Since amplitude and phase can be sampled, a combination with the spectrum slicing method might enable integrated, cost-effective, small-footprint analog-to-digital converters, and measurement devices for the characterization of single irregular optical signals with fast dynamics and bandwidths in the THz range.Arijit MisraStefan PreußlerLinjie ZhouThomas SchneiderNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-11 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Arijit Misra Stefan Preußler Linjie Zhou Thomas Schneider Nonlinearity- and dispersion- less integrated optical time magnifier based on a high-Q SiN microring resonator
description	Abstract The ability to measure optical signals with fast dynamics is of significant interest in many application fields. Usually, single-shot measurements of non-periodic signals can be enabled by time magnification methods. Like an optical lens in the spatial domain, a time magnifier, or a time lens, stretches a signal in the time domain. This stretched signal can then be further processed with low bandwidth photonics and electronics. For a robust and cost-effective measurement device, integrated solutions would be especially advantageous. Conventional time lenses require dispersion and nonlinear optical effects. Integration of a strong dispersion and nonlinearities is not straightforward on a silicon photonics platform and they might lead to signal distortions. Here we present a time magnifier based on an integrated silicon nitride microring resonator and frequency-time coherence optical sampling, which requires neither a dispersion, nor a nonlinearity. Sampling of signals with up to 100 GHz bandwidth with a stretching factor of more than 100 is achieved using low bandwidth measurement equipment. Nevertheless, with already demonstrated integrated 100 GHz modulators, the method enables the measurement of signals with bandwidths of up to 400 GHz. Since amplitude and phase can be sampled, a combination with the spectrum slicing method might enable integrated, cost-effective, small-footprint analog-to-digital converters, and measurement devices for the characterization of single irregular optical signals with fast dynamics and bandwidths in the THz range.
format	article
author	Arijit Misra Stefan Preußler Linjie Zhou Thomas Schneider
author_facet	Arijit Misra Stefan Preußler Linjie Zhou Thomas Schneider
author_sort	Arijit Misra
title	Nonlinearity- and dispersion- less integrated optical time magnifier based on a high-Q SiN microring resonator
title_short	Nonlinearity- and dispersion- less integrated optical time magnifier based on a high-Q SiN microring resonator
title_full	Nonlinearity- and dispersion- less integrated optical time magnifier based on a high-Q SiN microring resonator
title_fullStr	Nonlinearity- and dispersion- less integrated optical time magnifier based on a high-Q SiN microring resonator
title_full_unstemmed	Nonlinearity- and dispersion- less integrated optical time magnifier based on a high-Q SiN microring resonator
title_sort	nonlinearity- and dispersion- less integrated optical time magnifier based on a high-q sin microring resonator
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/6cb2153abe9d47db87baf6502a14eeb8
work_keys_str_mv	AT arijitmisra nonlinearityanddispersionlessintegratedopticaltimemagnifierbasedonahighqsinmicroringresonator AT stefanpreußler nonlinearityanddispersionlessintegratedopticaltimemagnifierbasedonahighqsinmicroringresonator AT linjiezhou nonlinearityanddispersionlessintegratedopticaltimemagnifierbasedonahighqsinmicroringresonator AT thomasschneider nonlinearityanddispersionlessintegratedopticaltimemagnifierbasedonahighqsinmicroringresonator
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Nonlinearity- and dispersion- less integrated optical time magnifier based on a high-Q SiN microring resonator

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