Effects Of 3-Photon Absorption On Nonlinear Directional Coupling
Title - Alternative
2-Photon Absorption; Limitation; Optics
The effects of three-photon absorption on nonlinear directional coupling in semiconductors below half the gap are studied for both cw and sech 2 pulse signals. The figure of merit associated with three-photon absorption includes not only material properties but also device design parameters. Numerical results show that at high powers, three-photon absorption significantly degrades nonlinear coupling, reduces throughput, and distorts output pulses. Good agreement is found between the theoretical model and experimental data.
Yang, C. C.; Villenueve, A.; Stegeman, G. I.; and Aitchison, J. S., "Effects Of 3-Photon Absorption On Nonlinear Directional Coupling" (1992). Faculty Bibliography. 1473.