Abstract

Glasses doped with semiconductor microcrystalline CdS_xSe_1-x (10 nm – 100 nm in dimension) have recently attracted muuch interest due to their large third-order nonlinearities and fast response times. Jain and Lind have been reported the third-order nonlinear susceptibilities χ⁽⁸⁾ of CdS_xSe_1-x-doped glasses were measured to be 10^-9–10^-8 esu in a degenerate four-wave mixing (DFWM) experiment and that the origin of the nonlinearity can be attributed to the generation of a short-live electron-hole plasma (band-filling effect)¹. The nonlinear response of CdS_xSe_1-x-doped glass has been got to be about 3.5 ps². So it has great potential to be used in developing high-speed and low-power nonlinear optical devices. Junji Yumoto⁸ observed the optical bistablility made using an external Fabry-Perot (F-P) cavity containing CdS_xSe_1-x-doped glasses with bistable-switching time of 25 ps. In this paper we report the observation of optical bistability of an internal F-P cavity structure single-mode waveguide device made of CdS_xSe1−x-doped glass.

© 1992 Optical Society of America