Related papers: Investigation of Purcell enhancement of quantum dots emitting in the telecom O-band with an open fiber-cavity

Investigation of Purcell enhancement of quantum dots emitting in the telecom O-band with an open fiber-cavity

URL: http://arxiv.org/abs/2403.10960v2
Date: Wed, 3 Apr 2024 13:19:28 GMT
Title: Investigation of Purcell enhancement of quantum dots emitting in the telecom O-band with an open fiber-cavity
Authors: Julian Maisch, Jonas Grammel, Nam Tran, Michael Jetter, Simone L. Portalupi, David Hunger, Peter Michler,
Abstract summary: Single-photon emitters integrated in optical micro-cavities are key elements in quantum communication applications. Here, we present a thorough investigation of semiconductor quantum dots (QDs) emitting in the telecom O-band, integrated in an open fiber-cavity. The design provides an optical micro-cavity tunable in all spatial dimensions with intrinsic fiber-coupling.
Score: 0.4537124110113416
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Single-photon emitters integrated in optical micro-cavities are key elements in quantum communication applications. However, for each combination of a cavity geometry with a quantum emitter system, there are specific challenges in the optimization of the emission properties and cavity-emitter interaction. Here, we present a thorough investigation of semiconductor quantum dots (QDs), emitting in the telecom O-band, integrated in an open fiber-cavity. The design provides an optical micro-cavity tunable in all spatial dimensions with intrinsic fiber-coupling. Consequently, it offers a promising approach to a high collection efficiency and the investigation of spatially and spectrally varying samples. On the other hand, the system is also susceptible to vibrational noise. Therefore, we provide a comprehensive study of the cavity and emitter properties together with an analysis of the fluctuations of the cavity length. Due to the Purcell enhancement, we observe a reduction of the decay times of up to a factor of ${2.46(2)}$.

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