Abstract

Optical bistable behavior in a quasi-waveguide interferometer with the third-order nonlinearity of the guiding film of a soluble polydiacetylene (poly-4BCMU) is demonstrated. This device shows input–output behavior analogous to that of a nonlinear Fabry–Perot étalon. The value of χ⁽³⁾ for poly-4BCMU estimated from the switching power is considerably higher than the earlier reported nonresonant values measured by other methods.

© 1988 Optical Society of America

All-optical bistabilities of polydiacetylene Langmuir–Blodgett film waveguides

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