Siddiqui, A.Hong, K. H.Moses, J.Chen, J.Ilday, F. O.Kartner, F. X.2015-07-282015-07-282011-03-280146-9592http://hdl.handle.net/11693/13394The use of a low finesse enhancement cavity resonant with a low average power (< 1W) and a high repetition rate (78MHz) pump source is shown to achieve 55% conversion efficiency into signal and idler from the coupled pump in an optical parametric process, whereas an equivalent amount of pump power in a single-pass configuration leads to negligible conversion. Careful comparison of the intracavity conversion process to the single-pass case is performed to assess the underlying impedance matching that yields the high conversion results.EnglishLaserPowerArticle10.1364/OL.36.001206