Exploring the Photon-Number Distribution of Bimodal Microlasers with a Transition Edge Sensor

Schlottmann, Elisabeth; Helversen, Martin von; Leymann, H. A. M.; Lettau, T.; Krüger, Felix; Schmidt, Marco; Schneider, Christian; Kamp, M.; Höfling, Sven; Beyer, J.; Wiersig, Jan; Reitzenstein, Stephan

doi:10.1103/physrevapplied.9.064030

Cited by 41 publications

(82 citation statements)

References 46 publications

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“…The latter is providing the intracavity photon number (top axis) while the measured photon number which is expected to be on the order of 10 4 in the 15 ns gate is reduced due to losses in the detection path and detector efficiency. We want to point out that despite the attenuation of the signal by approximately 3 orders of magnitude we can still access the underlying photon statistics as it is discussed in a recent publication [42]. (a) clearly reveals the Poissonian statistics of the strong mode with a thermal tail (indicated by significant events for n = 0).…”

Section: Photon Statisticsmentioning

confidence: 95%

Tailoring the mode-switching dynamics in quantum-dot micropillar lasers via time-delayed optical feedback

Holzinger¹,

Redlich²,

Lingnau³

et al. 2018

Opt. Express

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Microlasers are ideal candidates to bring the fascinating variety of nonlinear complex dynamics found in delay-coupled systems to the realm of quantum optics. Particularly attractive is the possibility of tailoring the devices' emission properties via non-invasive delayed optical coupling. However, until now scarce research has been done in this direction. Here, we experimentally and theoretically investigate the effects of delayed optical feedback on the mode-switching dynamics of an electrically driven bimodal quantum-dot micropillar laser, characterizing its impact on the micropillar's output power, optical spectrum and photon statistics. Feedback is found to influence the switching dynamics and its characteristics time scales. In addition, stochastic switching is reduced with the subsequent impact on the microlaser photon statistics. Our results contribute to the comprehension of feedback-induced phenomena in micropillar lasers and pave the way towards the external control and tailoring of the properties of these key systems for the nanophotonics community.

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Section: Photon Statisticsmentioning

confidence: 95%

Tailoring the mode-switching dynamics in quantum-dot micropillar lasers via time-delayed optical feedback

Holzinger¹,

Redlich²,

Lingnau³

et al. 2018

Opt. Express

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“…In this picture, a coherent (thermal) state of the light field is characterized by a Poissonian (Bose-Einstein) photon distribution function p n . This quantity can be accessed both in theory by using master-equation approaches [25][26][27][28], and in experiment by using photon-number-resolved detection schemes [29,30]. In practice, it is much easier to use the second-order photon autocorrelation function g (2) (0) to characterize the emission, as it can be readily mea-sured using Hanbury Brown and Twiss setups [31].…”

Section: Characterizing the Laser Threshold Beyond The Rate-equatmentioning

confidence: 99%

Delayed Transition to Coherent Emission in Nanolasers with Extended Gain Media

et al. 2018

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The realization of high-β lasers is one of the prime applications of cavity-QED promising ultra-low thresholds, integrability and reduced power consumption in the field of green photonics. In such nanolasers spontaneous emission can play a central role even above the threshold. By going beyond rate-equation approaches, we revisit the definition of a laser threshold in terms of the input-output characteristics and the degree of coherence of the emission. We demonstrate that there are new regimes of cavity-QED lasing, realized e.g. in high-Q nanolasers with extended gain material, for which the two can differ significantly such that coherence is reached at much higher pump powers than required to observe the thresholdlike intensity jump. Against the common perception, such devices do not benefit from high-β factors in terms of power reduction, as a significant amount of stimulated emission is required to quieten the spontaneous emission noise. arXiv:1809.08976v2 [cond-mat.mes-hall]

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“…More generally, any experiment where the involved photon numbers are not known beforehand are not faithfully possible using click detectors. This is for instance the case for mixtures of thermal and coherent light states emitted by QD-microlasers [28] or exciton-polariton condensates in microcavities [29], for which our TES detection system has been employed recently. In summary, we employed a state-of-the-art PNR detector system for the quantum metrology of solid-state single-photon sources.…”

Section: Discussionmentioning

confidence: 99%

Quantum metrology of solid-state single-photon sources using photon-number-resolving detectors

et al. 2019

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Quantum-light sources based on semiconductor quantum dots (QDs) are promising candidates for many applications in quantum photonics and quantum communication. Important emission characteristics of such emitters, namely the single-photon purity and photon indistinguishability, are usually assessed via time-correlated measurements using standard 'click' detectors in Hanbury Brown and Twiss or Hong-Ou-Mandel (HOM-) type configurations. In this work, we employ a state-of-theart photon-number-resolving (PNR) detection system based on superconducting transition-edge sensors (TESs) to directly access the photon-number distribution of deterministically fabricated solidstate single-photon sources. Offering quantum efficiencies close to unity and high energy resolution, our TES-based two-channel detector system allows us to analyse the quantum optical properties of a QD-based non-classical light source. In particular, it enables the direct observation of the two-particle Fock-state resulting from interference of quantum mechanically indistinguishable photons in HOMexperiments. Additionally, comparative measurements reveal excellent quantitative agreement of the photon-indistinguishabilities obtained with PNR ((90±7)%) and standard click ((90±5)%) detectors. Our work thus demonstrates that TES-based detectors are perfectly suitable for the quantum metrology of non-classical light sources and higlights appealing prospects for the efficient implementation of quantum information tasks based on multi-photon states.

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Exploring the Photon-Number Distribution of Bimodal Microlasers with a Transition Edge Sensor

Cited by 41 publications

References 46 publications

Tailoring the mode-switching dynamics in quantum-dot micropillar lasers via time-delayed optical feedback

Tailoring the mode-switching dynamics in quantum-dot micropillar lasers via time-delayed optical feedback

Delayed Transition to Coherent Emission in Nanolasers with Extended Gain Media

Quantum metrology of solid-state single-photon sources using photon-number-resolving detectors

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