A Pulsed Nonclassical Light Source Driven by an Integrated Electrically Triggered Quantum Dot Microlaser

Munnelly, Pierce; Heindel, Tobias; Karow, M. M.; Hoefling, Sven; Kamp, M.; Schneider, Christian; Reitzenstein, Stephan

doi:10.1109/jstqe.2015.2418219

Cited by 18 publications

(14 citation statements)

References 42 publications

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“…Additionally, dephasing due to electric field noise generated by fluctuating charge traps reduces the degree of TPI. 11 Thus, we conclude that resonant electrical injection schemes [31][32][33] or on-chip optical excitation schemes 34 might be useful to simultaneously achieve high photon-indistinguishabilities and high efficiencies in an integrated device approach. In summary, we realized an ultra-bright electrically triggered source of indistinguishable photons based on a QD micropillar cavity operated at a modulation speed of up to 1.2 GHz.…”

Section: For Details)mentioning

confidence: 82%

An electrically driven cavity-enhanced source of indistinguishable photons with 61% overall efficiency

et al. 2016

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We report on an electrically driven efficient source of indistinguishable photons operated at pulse-repetition rates f up to 1.2 GHz. The quantum light source is based on a p-i-n-doped micropillar cavity with integrated self-organized quantum dots, which exploits cavity quantum electrodynamics effects in the weak coupling regime to enhance the emission of a single quantum emitter coupled to the cavity mode. We achieve an overall single-photon extraction efficiency of (61 ± 11) % for a device triggered electrically at f = 625 MHz. Analyzing the suppression of multi-photon emission events as a function of excitation repetition rate, we observe single-photon emission associated with g(2)HBT(0) values between 0.076 and 0.227 for f ranging from 373 MHz to 1.2 GHz. Hong-Ou-Mandel-type two-photon interference experiments under pulsed current injection at 487 MHz reveal a photon-indistinguishability of (41.1 ± 9.5) % at a single-photon emission rate of (92 ± 23) MHz.

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Section: For Details)mentioning

confidence: 82%

An electrically driven cavity-enhanced source of indistinguishable photons with 61% overall efficiency

et al. 2016

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“…This is an order of magnitude improvement on the values of g (2) (0) measured in prior demonstrations of on-chip in-plane excitation. 25 We note that g (2) (0) 6 ¼ 0, even though we have accounted for the detector response. We attribute this to the leakage of light from Diode 1 into the output.…”

Section: à2mentioning

confidence: 99%

“…25 As barriers. Distributed Bragg Reflectors (DBRs) grown above (4 repeats) and below the InAs (15 repeats) quantum dot layer and quantum well are used to form a half-wavelength cavity.…”

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confidence: 99%

Electrically driven and electrically tunable quantum light sources

Lee

Murray

Bennett

et al. 2017

Applied Physics Letters

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Compact and electrically controllable on-chip sources of indistinguishable photons are desirable for the development of integrated quantum technologies. We demonstrate that two quantum dot light emitting diodes (LEDs) in close proximity on a single chip can function as a tunable, all-electric quantum light source. Light emitted by an electrically excited driving LED is used to excite quantum dots the neighbouring diode. The wavelength of the quantum dot emission from the neighbouring driven diode is tuned via the quantum confined Stark effect. We also show that we can electrically tune the fine structure splitting.

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“…Situated at the crossroads between nonlinear dynamics and quantum optics, cavity-enhanced microlasers offer a rich spectrum of exciting physics with potential applications as coherent light sources in system-on-chip quantum technologies [24]. Due to their low mode volume on the order of the cubic wavelength, QD-microlasers operate in the regime where cavity quantum electrodynamics (cQED) effects become important.…”

Section: Introductionmentioning

confidence: 99%

Mutual coupling and synchronization of optically coupled quantum-dot micropillar lasers at ultra-low light levels

et al. 2019

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Synchronization of coupled oscillators at the transition between classical physics and quantum physics has become an emerging research topic at the crossroads of nonlinear dynamics and nanophotonics. We study this unexplored field by using quantum dot microlasers as optical oscillators. Operating in the regime of cavity quantum electrodynamics (cQED) with an intracavity photon number on the order of 10 and output powers in the 100 nW range, these devices have high β -factors associated with enhanced spontaneous emission noise. We identify synchronization of mutually coupled microlasers via frequency locking associated with a sub-gigahertz locking range. A theoretical analysis of the coupling behavior reveals striking differences from optical synchronization in the classical domain with negligible spontaneous emission noise. Beyond that, additional self-feedback leads to zero-lag synchronization of coupled microlasers at ultra-low light levels. Our work has high potential to pave the way for future experiments in the quantum regime of synchronization.

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A Pulsed Nonclassical Light Source Driven by an Integrated Electrically Triggered Quantum Dot Microlaser

Cited by 18 publications

References 42 publications

An electrically driven cavity-enhanced source of indistinguishable photons with 61% overall efficiency

An electrically driven cavity-enhanced source of indistinguishable photons with 61% overall efficiency

Electrically driven and electrically tunable quantum light sources

Mutual coupling and synchronization of optically coupled quantum-dot micropillar lasers at ultra-low light levels

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