Ultrafast perturbation maps as a quantitative tool for testing of multi-port photonic devices.

Autor: Vynck K; LP2N, CNRS-Institut d'Optique Graduate School-Univ. Bordeaux, 33400, Talence, France. kevin.vynck@institutoptique.fr., Dinsdale NJ; Physics and Astronomy, Faculty of Physical Sciences and Engineering, University of Southampton, Southampton, SO17 1BJ, UK.; Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK., Chen B; Physics and Astronomy, Faculty of Physical Sciences and Engineering, University of Southampton, Southampton, SO17 1BJ, UK., Bruck R; Physics and Astronomy, Faculty of Physical Sciences and Engineering, University of Southampton, Southampton, SO17 1BJ, UK., Khokhar AZ; Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK., Reynolds SA; Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK., Crudgington L; Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK., Thomson DJ; Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK., Reed GT; Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK., Lalanne P; LP2N, CNRS-Institut d'Optique Graduate School-Univ. Bordeaux, 33400, Talence, France., Muskens OL; Physics and Astronomy, Faculty of Physical Sciences and Engineering, University of Southampton, Southampton, SO17 1BJ, UK. o.muskens@soton.ac.uk.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2018 Jun 08; Vol. 9 (1), pp. 2246. Date of Electronic Publication: 2018 Jun 08.
DOI: 10.1038/s41467-018-04662-2
Abstrakt: Advanced photonic probing techniques are of great importance for the development of non-contact wafer-scale testing of photonic chips. Ultrafast photomodulation has been identified as a powerful new tool capable of remotely mapping photonic devices through a scanning perturbation. Here, we develop photomodulation maps into a quantitative technique through a general and rigorous method based on Lorentz reciprocity that allows the prediction of transmittance perturbation maps for arbitrary linear photonic systems with great accuracy and minimal computational cost. Excellent agreement is obtained between predicted and experimental maps of various optical multimode-interference devices, thereby allowing direct comparison of a device under test with a physical model of an ideal design structure. In addition to constituting a promising route for optical testing in photonics manufacturing, ultrafast perturbation mapping may be used for design optimization of photonic structures with reconfigurable functionalities.
Databáze: MEDLINE
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