Efficient interfacing of GHz and MHz bandwidth single-photon pulses

Filip Sosnicki; Michal Mikolajczyk; Ali Golestani Shishvan; Adam Widomski; Michal Karpinski

doi:10.1117/12.2608608

9 March 2022 Efficient interfacing of GHz and MHz bandwidth single-photon pulses

Filip Sosnicki, Michal Mikolajczyk, Ali Golestani Shishvan, Adam Widomski, Michal Karpinski

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.

Conference Presentation

Citation Download Citation

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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