Quantum photonic integrated circuits based on tunable dots and tunable cavities

Petruzzella, Maurangelo; Birindelli, S.; Pagliano, Francesco; Pellegrino, Daniele; Zobenica, Ž.; Li, L. H.; Linfield, Edmund H.; Fiore, Andrea

doi:10.1063/1.5039961

Cited by 23 publications

(10 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nevertheless, perfect spectral matching among integrated SPSs is still mandatory for the scalable operation of dominant quantum photonic 3 information processing protocols, that rely on interferences among photons. Several methods have been studied to control emission wavelengths of QDs, such as thermal tuning 32 , strain tuning 33,34 , magnetic tuning 35 and Stark tuning 36,37 . We note that two-photon interference from independent QD SPSs on a single GaAs chip has recently been reported 38 , but the interference was observed off-chip and the SPSs were not integrated into a photonic circuit.…”

mentioning

confidence: 99%

In situ wavelength tuning of quantum-dot single-photon sources integrated on a CMOS-processed silicon waveguide

Katsumi

Ota

Osada

et al. 2020

Applied Physics Letters

View full text Add to dashboard Cite

Silicon quantum photonics provides a promising pathway to realize large-scale quantum photonic integrated circuits (QPICs) by exploiting the power of complementary-metal-oxide-semiconductor (CMOS) technology. Toward scalable operation of such silicon-based QPICs, a straightforward approach is to integrate deterministic single-photon sources (SPSs). To this end, hybrid integration of deterministic solid-state SPSs, such as those based on InAs/GaAs quantum dots (QDs), is highly promising. However, the spectral and spatial randomness inherent in the QDs pose a serious challenge for scalable implementation of multiple identical SPSs on a silicon CMOS chip. To overcome this challenge, we have been investigating a new hybrid integration technique called transfer printing, which is based on a pick-and-place operation and allows for the integration of desired QD SPSs on any locations on the silicon CMOS chips at will. Nevertheless, even in this scenario, in-situ fine tuning for perfect wavelength matching among the integrated QD SPSs will be required for interfering photons from the dissimilar sources. Here, we demonstrate in-situ wavelength tuning of QD SPSs integrated on a CMOS silicon chip. To thermally tune the emission wavelengths of the integrated QDs, we augmented the QD SPSs with optically driven heating pads. The integration of all the necessary elements was performed using transfer printing, which largely simplified the fabrication of the three-dimensional stack of micro/nanophotonic structures. We further demonstrate in-situ wavelength matching between two dissimilar QD sources integrated on the same silicon chip. Our transfer-printing-based approach will open the possibility for realizing large-scale QPICs that leverage CMOS technology._____________________________ a)

show abstract

mentioning

confidence: 99%

In situ wavelength tuning of quantum-dot single-photon sources integrated on a CMOS-processed silicon waveguide

Katsumi

Ota

Osada

et al. 2020

Applied Physics Letters

View full text Add to dashboard Cite

show abstract

“…Controlling the emission properties of bulk quantum emitters is a rapidly advancing field. Several techniques have been investigated, such as strain tuning with piezoelectric materials , and MEMS structures, , electric-field tuning, and thermal tuning . Among these approaches, strain tuning is particularly attractive because it allows for advanced control of a quantum emitter in a reversible manner, without visible degradation of the optical properties.…”

mentioning

confidence: 99%

Strain-Tunable Quantum Integrated Photonics

et al. 2018

View full text Add to dashboard Cite

Semiconductor quantum dots are crucial parts of the photonic quantum technology toolbox because they show excellent single-photon emission properties in addition to their potential as solid-state qubits. Recently, there has been an increasing effort to deterministically integrate single semiconductor quantum dots into complex photonic circuits. Despite rapid progress in the field, it remains challenging to manipulate the optical properties of waveguide-integrated quantum emitters in a deterministic, reversible, and nonintrusive manner. Here we demonstrate a new class of hybrid quantum photonic circuits combining III–V semiconductors, silicon nitride, and piezoelectric crystals. Using a combination of bottom-up, top-down, and nanomanipulation techniques, we realize strain tuning of a selected, waveguide-integrated, quantum emitter and a planar integrated optical resonator. Our findings are an important step toward realizing reconfigurable quantum-integrated photonics, with full control over the quantum sources and the photonic circuit.

show abstract

“…For example, aligning the emission spectra of distinct singlephoton sources is central for optical quantum technologies. MEMS-induced strain has been used for this purpose, and groups have reported spectral tuning of quantum dots in a III-V material platform using electrostatic MEMS [101], [102], and in a piezoelectrically-actuated platform combining III-V quantum dots and SiN waveguides [61]. Moreover, electrostatic MEMS in III-V materials have been used to tune the mode volume in a photonic crystal cavity, which in turn tunes the Purcell enhancement, and, in the case of an embedded optical source, its emission rate [103].…”

Section: E Integrated Sources and Nonlinear Picsmentioning

confidence: 99%