Large Optical Parametric Amplification and Efficient Differennce-Frequency Generation in Transverse-pumping Geometry

摘要

We have investigated optical parametric amplification and difference-frequency generation in the transverse-pumping geometry. For the amplification, when the pump power is set to the threshold, a very large gain is predicted if the input power for the signal is much lower than the threshold. However, as the input power increases, the gain decreases rapidly. On the other hand, for the difference-frequency generation, for each value of the pump power, there is an optimal input power at which the output power at the difference frequency reches a maximum.