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Proceedings Paper

Non-classical photons for long-distance quantum applications: from quantum frequency conversion to quantum dots emitting at 1550 nm (Conference Presentation)
Author(s): Peter Michler

Paper Abstract

Quantum dots reaching the best performances as non-classical light emitters are based on the GaAs platform. The main drawback is their natural emission wavelength, generally around 800-900 nm, so not suitable for fibre-based experiments. In this talk we will discuss two approaches to reach the telecom C-band, within the maximum transmission window of silica fibers. On the one hand, the use of quantum frequency conversion will enable the use of non-linear processes to transfer the high quality NIR photons to any other wavelength, here 1550 nm [1]. On the other hand, growth engineering can be utilized to modify size and strain conditions of the quantum dot, enabling the emission at telecom O- and C-band with the same dot stoichiometry as for the NIR ones [2]. [1] J. H. Weber, et al., Nat. Nanotechnol. 14, 23 (2019). [2] C. Nawrath et al., Appl. Phys. Lett. 115, 023103 (2019).

Paper Details

Date Published: 10 March 2020
Proc. SPIE 11295, Advanced Optical Techniques for Quantum Information, Sensing, and Metrology, 112950A (10 March 2020); doi: 10.1117/12.2548322
Show Author Affiliations
Peter Michler, Univ. Stuttgart (Germany)

Published in SPIE Proceedings Vol. 11295:
Advanced Optical Techniques for Quantum Information, Sensing, and Metrology
Philip R. Hemmer; Alan L. Migdall; Zameer Ul Hasan, Editor(s)

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