Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/135155
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Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Joshi, C. | - |
dc.contributor.author | Sparkes, B.M. | - |
dc.contributor.author | Farsi, A. | - |
dc.contributor.author | Gerrits, T. | - |
dc.contributor.author | Verma, V. | - |
dc.contributor.author | Ramelow, S. | - |
dc.contributor.author | Nam, S.W. | - |
dc.contributor.author | Gaeta, A.L. | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | Optica, 2022; 9(4):364-373 | - |
dc.identifier.issn | 2334-2536 | - |
dc.identifier.issn | 2334-2536 | - |
dc.identifier.uri | https://hdl.handle.net/2440/135155 | - |
dc.description.abstract | Techniques to control the spectro-temporal properties of quantum states of light at ultrafast time scales are crucial for numerous applications in quantum information science. In this work, we report an all-optical time lens for quantum signals based on Bragg-scattering four-wave mixing with picosecond resolution. Our system achieves a temporal magnification factor of 158 with single-photon level inputs, which is sufficient to overcome the intrinsic timing jitter of superconducting nanowire single-photon detectors. We demonstrate discrimination of two terahertz-bandwidth, single-photon-level pulses with 2.1 ps resolution (electronic jitter corrected resolution of 1.25 ps).We draw on elegant tools from Fourier optics to further show that the time-lens framework can be extended to perform complex unitary spectro-temporal transformations by imparting optimized temporal and spectral phase profiles to the input waveforms. Using numerical optimization techniques, we show that a four-stage transformation can realize an efficient temporal mode sorter that demultiplexes 10 Hermite–Gaussian (HG) modes. Our time-lens-based framework represents a new toolkit for arbitrary spectro-temporal processing of single photons, with applications in temporal mode quantum processing, high-dimensional quantum key distribution, temporal mode matching for quantum networks, and quantum-enhanced sensing with time-frequency entangled states. | - |
dc.description.statementofresponsibility | Chaitali Joshi, Ben M. Sparkes, Alessandro Farsi, Thomas Gerrits, Varun Verma, Sven Ramelow, Sae Woo Nam, and Alexander L. Gaeta | - |
dc.language.iso | en | - |
dc.publisher | Optica Publishing Group | - |
dc.rights | © 2022 Optical Society of America under the terms of the OSA Open Access Publishing Agreement | - |
dc.source.uri | http://dx.doi.org/10.1364/optica.439827 | - |
dc.title | Picosecond-resolution single-photon time lens for temporal mode quantum processing | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1364/optica.439827 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/DE170100752 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Sparkes, B.M. [0000-0002-9370-2006] | - |
Appears in Collections: | IPAS publications |
Files in This Item:
File | Description | Size | Format | |
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hdl_135155.pdf | Published version | 5.64 MB | Adobe PDF | View/Open |
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