Nonlinear optical crystal frequency doubling experiment
In the nonlinear optics, the phase matching angle of nonlinear optical crystal has important influence on conversion efficiency and stability of frequency doubling light. This is the typical experiment to study the phase matching angle of nonlinear optical crystal. By analyzing the results of frequency doubling light power measurement for different incidence angles of KTP validates that the relation to frequency doubling efficiency along with the change of phase mismatching angle.
Main points:
a) The concept of phase matching angle (?,f)
b) Three-wave interaction efficiency: ?=?0sinc2 ??l/2)
c) External cavity frequency doubling Factors that influence efficiency of frequency doubling
Factors that influence efficiency of frequency doubling
d) Characteristics of class I and II phase matching crystal
Related Courses
Principles of Laser, Non-linear Optics, Laser Optics, All Solid State Laser and Nonlinear Optical Frequency Conversion Technology
Basic Configuration
Name
Specifications
Laser
Q-switched laser, Wavelength:1064nm(Include current source)
Focusing lens
f=80mm (with high transmittance film of 1064nm)
Crystal
KTP, II phase matching (LBO, I phase matching, selectable)
Filter
With high-reflectivity film of 1064nm and high transmittance film of 532nm
