Phase-insensitive all-optical transistors based on second-order nonlinearities
Abbreviated Journal Title
IEEE J. Quantum Electron.
nonlinear optics; optical amplifiers; optical materials/devices; optical; parametric amplifiers; optical switches; II 2ND-HARMONIC GENERATION; 2ND-ORDER NONLINEARITIES; QUADRATIC; NONLINEARITIES; MODULATION; WAVELENGTH; SHIFTS; KTP; Engineering, Electrical & Electronic; Optics; Physics, Applied
We demonstrate and compare two phase-insensitive all-optical transistors (AOT's) based on frequency-degenerate quadratic three-wave interactions, In particular, we demonstrate gain using KTP in a type LI geometry. Both AOT's exploit the phase insensitivity inherent to three-wave parametric processes when only two fields are input, providing amplification of a small signal at the operating frequency via the interaction with a second-harmonic wave, The first scheme is based on successive up-and down-conversion (i.e., cascading) while the second relies on parametric down-conversion. We obtain gains of 5 and 160 in the two configurations, respectively, with a significant background and output coherent to the pump in the first case, no background and coherence between output and signal in the second.
Ieee Journal of Quantum Electronics
"Phase-insensitive all-optical transistors based on second-order nonlinearities" (1998). Faculty Bibliography 1990s. 2307.