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PreprintCC BY 4.0arXiv

Vertical microcavities with optical Kerr materials

  • Riya Varghese
  • Ali Panahpour
  • Marco Ornigotti
  • Mikko J Huttunen
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Abstract

Optical Kerr nonlinearity is central to optical bistability in high-Q microcavities. Here, we show that optical Kerr nonlinearities in Fabry Perot resonators can also result in self-focusing effects, that can substantially modify the Q-factors of the resonators. For the studied cavities, up to five-fold increase in Q-factors is predicted, attributed to reduction of sidewall leakage, confirmed via simulations performed on curved cavities. We also show that for high Q-factor cavities, the higher-order Kerr effect can become relevant already at modest input intensities scaling inversely with Q-factor for a particular n2/n4 ratio. We investigate numerically the role of higher-order Kerr effect on optical bistability responses and find that its inclusion can shift the bistability threshold to higher input intensities than predicted by the standard n2-only model.

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Cite

BibTeXRIS
BibTeX
@misc{varghese2026vertical,
  title = {{Vertical microcavities with optical Kerr materials}},
  author = {Riya Varghese and Ali Panahpour and Marco Ornigotti and Mikko J Huttunen},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.29415},
  eprint = {2609.29415},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.29415},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Vertical microcavities with optical Kerr materials
AU  - Riya Varghese
AU  - Ali Panahpour
AU  - Marco Ornigotti
AU  - Mikko J Huttunen
PY  - 2026
DA  - 2026/09/24
PB  - arXiv
DO  - 10.48550/arxiv.2609.29415
UR  - https://arxiv.org/abs/2609.29415
AB  - Optical Kerr nonlinearity is central to optical bistability in high-Q microcavities. Here, we show that optical Kerr nonlinearities in Fabry Perot resonators can also result in self-focusing effects, that can substantially modify the Q-factors of the resonators. For the studied cavities, up to five-fold increase in Q-factors is predicted, attributed to reduction of sidewall leakage, confirmed via simulations performed on curved cavities. We also show that for high Q-factor cavities, the higher-order Kerr effect can become relevant already at modest input intensities scaling inversely with Q-factor for a particular n2/n4 ratio. We investigate numerically the role of higher-order Kerr effect on optical bistability responses and find that its inclusion can shift the bistability threshold to higher input intensities than predicted by the standard n2-only model.
ER  -