Optical gating performance using a semiconductor-doped glass etalon

Optical gating is demonstrated using fast-response CdSeTe-doped glass. Continuous-wave probe light and pulsed gate light collinearly illuminate a Fabry-Perot nonlinear optical cavity consisting of two external mirrors and the doped glass. The output of the probe light is gated by the gate light with fast response time. The gating is caused by refractive-index change in the glass due to the carriers generated by the gate light. The nonlinear refractive index of the material is evaluated precisely.<>