A fiber Fabry–Perot cavity with high finesse

D Hunger, T Steinmetz, Y Colombe, C Deutsch, T W Hänsch, J Reichel
2010 New Journal of Physics  
We have realized a fiber-based Fabry-Perot cavity with CO2 laser-machined mirrors. It combines very small size, high finesse F>=130000, small waist and mode volume, and good mode matching between the fiber and cavity modes. This combination of features is a major advance for cavity quantum electrodynamics (CQED), as shown in recent CQED experiments with Bose-Einstein condensates enabled by this cavity [Y. Colombe et al., Nature 450, 272 (2007)]. It should also be suitable for a wide range of
more » ... a wide range of other applications, including coupling to solid-state emitters, gas detection at the single-particle level, fiber-coupled single-photon sources and high-resolution optical filters with large stopband.
doi:10.1088/1367-2630/12/6/065038 fatcat:ikg2quxkxzewbdlftvhlv5ivvq