Abstract
We report on a novel high-sensitivity method to characterize and improve mode matching into optical cavities. This method is based on heterodyne detection of cylindrical transverse cavity modes. A specially designed annular-segmented photodiode is used to measure the amplitude of nonresonant modes reflected by the cavity. Our measurements allow us to optimize cavity mode matching to nearly 99.98% and will play an important diagnostic role in gravitational-wave detectors.
© 2000 Optical Society of America
Full Article | PDF ArticleMore Like This
J. Arlt and M. J. Padgett
Opt. Lett. 25(4) 191-193 (2000)
Nenad Milosevic, Gabriel Tempea, and Thomas Brabec
Opt. Lett. 25(9) 672-674 (2000)
Jong H. Chow, Glenn de Vine, Malcolm B. Gray, and David E. McClelland
Opt. Lett. 29(20) 2339-2341 (2004)