Laser written circuits for quantum photonics

The femtosecond laser direct‐writing (FLDW) of waveguide circuits in glasses has seen interest from a number of fields over the previous 20 years. It has evolved from a curiosity to a viable platform for the rapid prototyping of small scale circuits. The field of quantum information science has expl...

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Bibliographic Details
Published in:Laser & photonics reviews 2015-07, Vol.9 (4), p.363-384
Main Authors: Meany, Thomas, Gräfe, Markus, Heilmann, René, Perez-Leija, Armando, Gross, Simon, Steel, Michael J., Withford, Michael J., Szameit, Alexander
Format: Article
Language:English
Subjects:
Circuits
Computer simulation
Femtosecond
Information science
laser materials processing
Lasers
photonic integrated circuits
Photons
Platforms
quantum computation
Quantum information
Quantum theory
Rapid prototyping
Small scale
waveguides
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Summary:The femtosecond laser direct‐writing (FLDW) of waveguide circuits in glasses has seen interest from a number of fields over the previous 20 years. It has evolved from a curiosity to a viable platform for the rapid prototyping of small scale circuits. The field of quantum information science has exploited this capability and in the process advanced the fabrication technique. In this review the technological aspects of the laser inscription method relevant to quantum information science will be discussed. A range of demonstrations which have been enabled by laser written circuits will be outlined; these include novel circuits, simulations, photon sources and detection. This places the FLDW technique among the few integrated optical platforms to have produced individually every component required for scalable quantum computation. The femtosecond laser direct‐writing (FLDW) of waveguide circuits in glasses has seen interest from a number of fields over the previous 20 years. It has evolved from a curiosity to a viable platform for the rapid prototyping of small scale circuits. The field of quantum information science has exploited this capability and in the process advanced the fabrication technique. In this review the technological aspects of the laser inscription method relevant to quantum information science will be discussed. A range of demonstrations which have been enabled by laser written circuits will be outlined; these include novel circuits, simulations, photon sources and detection. This places the FLDW technique among the few integrated optical platforms to have produced individually every component required for scalable quantum computation.
ISSN:1863-8880
1863-8899
DOI:10.1002/lpor.201500061