Experimental evidence of multimode non‐classical light emission using OPOs
A. Maître, Nicolas Treps, M. Martinelli, S. Ducci, Claude Fabre · Fortschritte der Physik · 2003
Abstract Any spatial measurement below the quantum standard limit requires multitransverse non‐classical light beams which can be produced by a transverse degenerate OPO. A multimode beam is characterized by a non uniform transverse repartition of noise. Using this criterion, we prove experimentally that a confocal Optical Parametric Oscillator emits a multimode non‐classical field.