PYKAT: Python package for modelling precision optical interferometers

Daniel D. Brown*, Philip Jones, Samuel Rowlinson, Sean Leavey, Anna C. Green, Daniel Töyrä, Andreas Freise

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review


PYKAT is a Python package which extends the popular optical interferometer modelling software FINESSE. It provides a more modern and efficient user interface for conducting complex numerical simulations, as well as enabling the use of Python's extensive scientific software ecosystem. In this paper we highlight the relationship between PYKAT and FINESSE, how it is used, and provide an illustrative example of how it has helped to better understand the characteristics of the current generation of gravitational wave interferometers.

Original languageEnglish
Article number100613
Pages (from-to)1-6
Number of pages6
Publication statusPublished - Jul 2020


  • Gravitational wave detector modelling
  • Interferometry modelling
  • Quantum noise
  • Quantum optics


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