Abstract
We present a low-loss, compact, hollow core optical fibre (HCF) cell integrated with single mode fibre (SMF). The cell is designed to be filled with atomic vapour and used as a component in photonic quantum technologies, with applications in quantum memory and optical switching. We achieve a total insertion loss of 0.6(2) dB at 780 nm wavelength via graded index fibre to ensure efficient mode matching coupled with anti-reflection coatings to minimise loss at the SMF-HCF interfaces. We also present numerical modelling of these interfaces, which can be undertaken efficiently without the need for finite element simulation. We encapsulate the HCF core by coupling to the SMF inside a support capillary, enhancing durability and facilitating seamless integration into existing fibre platforms.
Original language | English |
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Pages (from-to) | 21925 - 21935 |
Number of pages | 11 |
Journal | Optics Express |
Volume | 32 |
Issue number | 12 |
Early online date | 31 May 2024 |
DOIs | |
Publication status | Published - 3 Jun 2024 |
Data Availability Statement
Data underlying the results presented in this paper are available in [50].50. C. McGarry, K. Harrington, D. Goodwin, et al., “Dataset for Low-loss, compact, fibre-integrated cell for quantum memories,” University of Bath Research Data Archive: Version 2024, https://doi.org/10.15125/BATH-01403.
Funding
Innovate UK “The quantum data centre of the future” (application number 10004793).
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Dataset for Low-loss, compact, fibre-integrated cell for quantum memories
McGarry, C. (Creator), Harrington, K. (Creator), Goodwin, D. J. (Creator), Perek-Jennings, C. (Creator), Birks, T. (Creator), Rusimova, K. (Creator) & Mosley, P. (Creator), University of Bath, 24 May 2024
DOI: 10.15125/BATH-01403
Dataset