Laser Physics and Laser Spectroscopy
Abstract
Two essential difficulties must be addressed in any low-power frequency conversion device; boosting the efficiency above that of simple single-pass bulk devices (which are typically less than 1%/W) and achieving phase-matching for the desired interaction. Waveguide interactions were used to increase the conversion efficiency, and explored quais-phase-matching (QPM) as a broadly applicable approach to meeting the phasematching condition. Both oxide forrelectrics like LiNb03 and quantum-wells in III-V semiconductors have been investigated for these applications. Second harmonic generation (SHG) of near- infrared lasers to produce green and blue radiation, as well as SHG of the 9-11 micrometer output of a CO2 laser have been demonstrated in these materials. These media together constitute a significant step towards the goal of generic nonlinear media for the far-infrared - ultraviolet, based on readily available materials and fabricated with standard technologies, applicable to essentially any frequency conversion application.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1990
- Accession Number
- ADA224379
Entities
People
- Robert L. Byer
Organizations
- Stanford University