Variable electro-optic shearing interferometry for ultrafast single-photon-level pulse characterization
Fuente:
arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2022
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| _version_ | 1866929234813911040 |
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| author | Kurzyna, Stanisław Jastrzębski, Marcin Fabre, Nicolas Wasilewski, Wojciech Lipka, Michał Parniak, Michał |
| author_facet | Kurzyna, Stanisław Jastrzębski, Marcin Fabre, Nicolas Wasilewski, Wojciech Lipka, Michał Parniak, Michał |
| contents | Despite the multitude of available methods, the characterisation of ultrafast pulses remains a challenging endeavour, especially at the single-photon level. We introduce a pulse characterisation scheme that maps the magnitude of its short-time Fourier transform. Contrary to many well-known solutions it does not require nonlinear effects and is therefore suitable for single-photon-level measurements. Our method is based on introducing a series of controlled time and frequency shifts, where the latter is performed via an electro-optic modulator allowing a fully-electronic experimental control. We characterized the full spectral and temporal width of a classical and single-photon-level pulse and successfully reconstructed their spectral phase and amplitude. The method can be extended by implementing a phase-sensitive measurement and is naturally well-suited to partially-incoherent light. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2207_14049 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Variable electro-optic shearing interferometry for ultrafast single-photon-level pulse characterization Kurzyna, Stanisław Jastrzębski, Marcin Fabre, Nicolas Wasilewski, Wojciech Lipka, Michał Parniak, Michał Optics Quantum Physics Despite the multitude of available methods, the characterisation of ultrafast pulses remains a challenging endeavour, especially at the single-photon level. We introduce a pulse characterisation scheme that maps the magnitude of its short-time Fourier transform. Contrary to many well-known solutions it does not require nonlinear effects and is therefore suitable for single-photon-level measurements. Our method is based on introducing a series of controlled time and frequency shifts, where the latter is performed via an electro-optic modulator allowing a fully-electronic experimental control. We characterized the full spectral and temporal width of a classical and single-photon-level pulse and successfully reconstructed their spectral phase and amplitude. The method can be extended by implementing a phase-sensitive measurement and is naturally well-suited to partially-incoherent light. |
| title | Variable electro-optic shearing interferometry for ultrafast single-photon-level pulse characterization |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2207.14049 |