Quantum dot micropillar lasers

Gies, Christopher; Reitzenstein, Stephan

doi:10.1088/1361-6641/ab1551

Cited by 15 publications

(35 citation statements)

References 202 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the presence of second-order Bragg gratings, parts of the emitted photons from the QD are scattered upwards for efficient collections and the others are reflected back to form a cavity for enhancing the strength of light-matter interactions [33][34][35][36][37][38] . To optically pump the QD-CBG SPS, we explore electrically-injected micropillar lasers 39 With the above device design, we further explore the optical performance of a single-QD in the hybrid cavities by modeling the extraction efficiency and the Purcell factor, as shown in Fig. 2a.…”

Section: Resultsmentioning

confidence: 99%

Bright semiconductor single-photon sources pumped by heterogeneously integrated micropillar lasers with electrical injections

Liu

Wei

et al. 2023

Light Sci Appl

View full text Add to dashboard Cite

The emerging hybrid integrated quantum photonics combines the advantages of different functional components into a single chip to meet the stringent requirements for quantum information processing. Despite the tremendous progress in hybrid integrations of III-V quantum emitters with silicon-based photonic circuits and superconducting single-photon detectors, on-chip optical excitations of quantum emitters via miniaturized lasers towards single-photon sources (SPSs) with low power consumptions, small device footprints, and excellent coherence properties is highly desirable yet illusive. In this work, we present realizations of bright semiconductor SPSs heterogeneously integrated with on-chip electrically-injected microlasers. Different from previous one-by-one transfer printing technique implemented in hybrid quantum dot (QD) photonic devices, multiple deterministically coupled QD-circular Bragg Grating (CBG) SPSs were integrated with electrically-injected micropillar lasers at one time via a potentially scalable transfer printing process assisted by the wide-field photoluminescence (PL) imaging technique. Optically pumped by electrically-injected microlasers, pure single photons are generated with a high-brightness of a count rate of 3.8 M/s and an extraction efficiency of 25.44%. Such a high-brightness is due to the enhancement by the cavity mode of the CBG, which is confirmed by a Purcell factor of 2.5. Our work provides a powerful tool for advancing hybrid integrated quantum photonics in general and boosts the developments for realizing highly-compact, energy-efficient and coherent SPSs in particular.

show abstract

Section: Resultsmentioning

confidence: 99%

Bright semiconductor single-photon sources pumped by heterogeneously integrated micropillar lasers with electrical injections

Liu

Wei

et al. 2023

Light Sci Appl

View full text Add to dashboard Cite

show abstract

“…Due to the presence of second-order Bragg gratings, parts of the emitted photons from the QD are scattered upwards for efficient collections and the others are reflected back to form a cavity for enhancing the strength of light-matter interactions. To optically pump the QD-CBG SPS, we explore electrically-injected micropillar lasers 34 consisting of quantum wells sandwiched between two distributed Bragg Reflectors (DBRs) [Fig. 1(b)].…”

Section: Resultsmentioning

confidence: 99%

Bright Semiconductor Single-Photon Sources Pumped by Heterogeneously Integrated Micropillar lasers with Electrical Injections

Liu

et al. 2022

Preprint

View full text Add to dashboard Cite

The emerging hybrid integrated quantum photonics combines advantages of different functional components into a single chip to meet the stringent requirements for quantum information processing. Despite the tremendous progress in hybrid integrations of III-V quantum emitters with silicon-based photonic circuits and superconducting single-photon detectors, on-chip optical excitations of quantum emitters via miniaturized lasers towards single-photon sources (SPSs) with low power consumptions, small device footprints and excellent coherence properties is highly desirable yet illusive. In this work, we present realizations of bright semiconductor singe-photon sources heterogeneously integrated with on-chip electrically-injected microlasers. Different from previous one-by-one transfer printing technique implemented in hybrid quantum dot (QD) photonic devices, multiple deterministically coupled QD-circular Bragg Grating (CBG) SPSs were integrated with electrically-injected micropillar lasers at one time via a potentially scalable transfer printing process assisted by the wide-field photoluminescence (PL) imaging technique. Optically pumped by electrically-injected microlasers, pure single photons are generated with a high-brightness of a count rate of 3.8 M/s and an extraction efficiency of 21.5%. Such a high-brightness is due to the enhancement by the cavity mode of the CBG, which is confirmed by a Purcell factor of 2.5. Our work provides a powerful tool for advancing hybrid integrated quantum photonics in general and boosts the developments for realizing highly-compact, energy-efficient and coherent SPSs in particular.

show abstract

“…In the last decade, an increasing number of publications have established the importance of quantum optical studies on the emission statistics to unambiguously prove lasing operation of high-β emitters [11], [12], [14]- [16], [18], [33]- [42]. In fact, devices working in the regime of amplified spontaneous emission can exhibit linear input-output characteristics without a pronounced kink and significant linewidth narrowing/coherence time increase, which could incorrectly be interpreted as a signature of lasing in a high-β device [14].…”

Section: Quantum-optical Characterizationmentioning

confidence: 99%

Quantum fluctuations and lineshape anomaly in a high-$β$ silver-coated InP-based metallic nanolaser

Koulas-Simos,

Buchgeister,

Drechsler

et al. 2022

Preprint

View full text Add to dashboard Cite

Metallic nanocavity lasers provide important technological advancement towards even smaller integrable light sources. They give access to widely unexplored lasing physics in which the distinction between different operational regimes, like those of thermal or a coherent light emission, becomes increasingly challenging upon approaching a device with a near-perfect spontaneous-emission coupling factor β. In fact, quantum-optical studies have to be employed to reveal a transition to coherent emission in the intensity fluctuation behavior of nanolasers when the input-output characteristic appears thresholdless for β = 1 nanolasers. Here, we identify a new indicator for lasing operation in high-β lasers by showing that stimulated emission can give rise to a lineshape anomaly manifesting as a transition from a Lorentzian to a Gaussian component in the emission linewidth that dominates the spectrum above the lasing threshold.

show abstract

Quantum dot micropillar lasers

Cited by 15 publications

References 202 publications

Bright semiconductor single-photon sources pumped by heterogeneously integrated micropillar lasers with electrical injections

Bright semiconductor single-photon sources pumped by heterogeneously integrated micropillar lasers with electrical injections

Bright Semiconductor Single-Photon Sources Pumped by Heterogeneously Integrated Micropillar lasers with Electrical Injections

Quantum fluctuations and lineshape anomaly in a high-$β$ silver-coated InP-based metallic nanolaser

Contact Info

Product

Resources

About