X. Liu et al., Noncollinear generation of optical spatiotemporal solitons and applicationto ultrafast digital logic, PHYS REV E, 61(5), 2000, pp. R4722-R4725
We demonstrate theoretically and experimentally that spatiotemporal soliton
s can be generated through noncollinear second-harmonic generation. The res
ulting Y geometry could be used to implement an optical AND gate with ultra
fast, high-contrast operation but without sensitivity to the phases of the
input pulses.