Integration of GaAs waveguides on a silicon substrate for quantum photonic circuits

Article Optics

2022 Roadmap on integrated quantum photonics

Galan Moody et al.

Summary: Integrated photonics is crucial for the large-scale integration of quantum systems, enabling programmable quantum information processing, chip-to-chip networking, hybrid quantum system integration, and high-speed communications.

JOURNAL OF PHYSICS-PHOTONICS (2022)

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Review Chemistry, Multidisciplinary

Mechanophotonics - a guide to integrating microcrystals toward monolithic and hybrid all-organic photonic circuits

Rajadurai Chandrasekar

Summary: Molecular crystals are being explored as a non-silicon alternative for constructing all-organic photonic integrated circuits (OPICs), with the development of flexible molecular crystals and mechanophotonics techniques enabling the construction of proof-of-principle OPICs. This article validates the use of organic crystals for OPIC fabrication and introduces crystal-based photonic modules and prototypes, emphasizing the need for developing techniques to create well-defined organic crystals with photonic attributes. The ultimate goal is to build a library of optical crystals to support the construction of OPICs using a pick-and-place approach.

CHEMICAL COMMUNICATIONS (2022)

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Article Physics, Multidisciplinary

A deterministic source of single photons

Peter Lodahl et al.

Summary: Advances in atomic and solid-state physics have opened up new possibilities for quantum computing applications.

PHYSICS TODAY (2022)

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Article Optics

High-performance modified uni-traveling carrier photodiode integrated on a thin-film lithium niobate platform

Xiangwen Guo et al.

Summary: This study demonstrates the integration of high-bandwidth and high-responsivity photodiodes on the lithium niobate on insulator (LNOI) platform, filling the gap of high-speed photodetectors on LNOI.

PHOTONICS RESEARCH (2022)

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Review Nanoscience & Nanotechnology

Quantum-dot-based deterministic photon-emitter interfaces for scalable photonic quantum technology

Ravitej Uppu et al.

Summary: Scaling up quantum hardware is crucial for realizing the full potential of quantum technology, with photonics offering a modular approach and solid-state quantum emitters enabling key quantum functionalities. The use of integrated photonics foundry technology can lead to small-footprint quantum processors, while deterministic photon-emitter interfaces could pave the way for resource-efficient hardware architectures in quantum communication and computing applications.

NATURE NANOTECHNOLOGY (2021)

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Article Optics

Unidirectional output from a quantum-dot single-photon source hybrid integrated on silicon

Ryota Katsumi et al.

Summary: A quantum-dot single-photon source (QD SPS) hybrid integrated on a silicon waveguide embedding a photonic crystal mirror has been reported, enabling efficient unidirectional output from the waveguide. Experimental results demonstrate promising progress towards scalable integration of single-photon sources on silicon quantum photonics platforms.

OPTICS EXPRESS (2021)

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Article Physics, Applied

Electroabsorption in gated GaAs nanophotonic waveguides

Ying Wang et al.

Summary: The study focused on analyzing the electroabsorption in thin GaAs/Al0.3Ga0.7As nanophotonic waveguides with an embedded p-i-n junction. Transmission measurements of waveguides of different lengths were used to derive the propagation loss in relation to the electric field, wavelength, and temperature. The results, in agreement with the Franz-Keldysh model, are crucial for understanding the loss in nanophotonic devices operating in the emission range of self-assembled InAs semiconductor quantum dots towards scalable quantum photonic integrated circuits.

APPLIED PHYSICS LETTERS (2021)

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Article Crystallography

Heterogeneously Integrated Photonic Chip on Lithium Niobate Thin-Film Waveguide

Xing Wei et al.

Summary: A novel platform is proposed to integrate single self-assembled InAs/GaAs quantum dots for a single-photon source on a lithium niobate photonic chip. Through a specific transfer procedure, precise transfer and integration of quantum dots are achieved, with an optimized structure designed to improve photon transmission efficiency. This device opens up new opportunities for achieving multifunctional hybrid integrated photonic chips.

CRYSTALS (2021)

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Article Optics

Enabling VCSEL-on-silicon nitride photonic integrated circuits with micro-transfer-printing

Jeroen Goyvaerts et al.

Summary: This research demonstrates the integration of bottom-emitting VCSELs onto silicon nitride PICs through micro-transfer printing method, aiming to achieve low-cost and large-scale production. The 850 nm lasers exhibit high power, low threshold, and low power consumption. Important features such as single-mode laser and tuning range are also demonstrated in this study.

OPTICA (2021)

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Article Engineering, Electrical & Electronic