Phase-controlled transistor action by cascading of second-order nonlinearities in KTP.
We demonstrate a 4.6-to-1 modulation depth imposed on the fluence of an intense 1.06-microm picosecond pulse by varying the relative phase of a weak second-harmonic control pulse under near phase-matched conditions. This transistorlike action is based on quadratic nonlinearities in KTP.
D J
DJ
Hagan
Z
Z
Wang
G
G
Stegeman
E W
EW
Van Stryland
M
M
Sheik-Bahae
G
G
Assanto