Potential for efficient frequency conversion at high average power using solid state nonlinear optical materials
Abstract
Highaveragepower frequency conversion using solid state nonlinear materials is discussed. Recent laboratory experience and new developments in design concepts show that with current technology, a few tens of watts may be extended by several orders of magnitude. For example, using KD*P, efficient doubling ( 70%) of Nd:YAG at average powers approaching 100 KW is possible; and for doubling to the blue or ultraviolet regions, the average power may approach 1 MW. Configurations using segmented apertures permit essentially unlimited scaling of average power. High average power is achieved by configuring the nonlinear material as a set of thin plates with a large ratio of surface area to volume and by cooling the exposed surfaces with a flowing gas. The design and material fabrication of such a harmonic generator are well within current technology.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 October 1985
 Bibcode:
 1985STIN...8622858E
 Keywords:

 Frequency Control;
 Frequency Converters;
 Harmonic Generators;
 Neodymium;
 Nonlinearity;
 Optical Materials;
 Solid State;
 Apertures;
 Average;
 Efficiency;
 Segments;
 Electronics and Electrical Engineering