Achievements and perspectives of optical fiber Fabry-Perot cavities (A2)

H. Pfeifer, L. Ratschbacher, J. Gallego, C. Saavedra, A. Faßbender, A. von Haaren, W. Alt, S. Hofferberth, M. Köhl, S. Linden, D. Meschede:

🔓 Appl. Phys. B 128, 29 (2022)

Fabry–Perot interferometers have stimulated numerous scientific and technical applications ranging from high-resolution
spectroscopy over metrology, optical filters, to interfaces of light and matter at the quantum limit and more. End facet
machining of optical fibers has enabled the miniaturization of optical Fabry–Perot cavities. Integration with fiber wave guide
technology allows for small yet open devices with favorable scaling properties including mechanical stability and compact
mode geometry. These fiber Fabry–Perot cavities (FFPCs) are stimulating extended applications in many fields including
cavity quantum electrodynamics, optomechanics, sensing, nonlinear optics and more. Here we summarize the state of the
art of devices based on FFPCs, provide an overview of applications and conclude with expected further research activities.