(under subclass 326) Subject matter wherein a nonlinear optical device generates a wave having a frequency which is an integral multiple of a fundamental input wave frequency.
(1) Note. A wave with twice the frequency of the fundamental is called the second harmonic.
SEE OR SEARCH THIS CLASS, SUBCLASS:
240, for light wave temporal modulation via a nonlinear device.
255, for electro-optic polarization modulation by a nonlinear device.
SEE OR SEARCH CLASS
307, Electrical Transmission or Interconnection Systems,
424, for a nonoptical parametric frequency converter. 327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,
113+, for miscellaneous frequency control such as electrical wave harmonic generation.
385, Optical Waveguides,
122, for optical fiber waveguide with cladding having significant nonlinear property.
