Patent ID: 9323284
Filing Date: 2016-04-26
CPC Classification: G01J,G02B,G06E

Claim Text:
1. An apparatus comprising: a first dispersive element through which an input waveform propagates; an optical element for outputting an output waveform; and a pump pulse input unit for input of a pump pulse into the optical element, the pump pulse input unit being coupled to the optical element, the pump pulse input unit having a second dispersive element through which the pump pulse propagates; wherein the optical element and the pump pulse input unit define a temporal lens, wherein each of the first dispersive element and the pump pulse input unit are coupled to the optical element; wherein the first dispersive element and the second dispersive element are configured so that a dispersion of the first dispersive element is matched with a dispersion of the second dispersive element; wherein the apparatus is configured so that the input waveform and the pump pulse are combined by four wave mixing at the optical element, so that the output waveform is phase shifted relative to the input waveform.