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9 March 2022 Efficient interfacing of GHz and MHz bandwidth single-photon pulses
Filip Sosnicki, Michal Mikolajczyk, Ali Golestani Shishvan, Adam Widomski, Michal Karpinski
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Proceedings Volume PC12015, Quantum Computing, Communication, and Simulation II; PC120150K (2022) https://doi.org/10.1117/12.2608608
Event: SPIE OPTO, 2022, San Francisco, California, United States
Abstract
We experimentally demonstrate efficient reduction of heralded telecom single-photon spectral bandwidth by a factor exceeding 220, from 130 GHz to below 550 MHz. The transformation is achieved in an all-fiber setup using dispersive stretching and complex electro-optic phase modulation. The approach is deterministic and results in a 27-fold increase in photon detection probability at the target wavelength. Combined with system transmission of 40% the interface enables increasing the single-photon flux into a spectrally narrowband absorber by a factor of 11. Our approach may enable efficient interfacing matter-based quantum systems with high-rate quantum communication channels and pulsed entangled photon pair sources.
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Filip Sosnicki, Michal Mikolajczyk, Ali Golestani Shishvan, Adam Widomski, and Michal Karpinski "Efficient interfacing of GHz and MHz bandwidth single-photon pulses", Proc. SPIE PC12015, Quantum Computing, Communication, and Simulation II, PC120150K (9 March 2022); https://doi.org/10.1117/12.2608608
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KEYWORDS
Photons
Single photon
Picosecond phenomena
Quantum communications
Quantum dots
Molecular bridges
Optical filters
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