The Optical Performance of All-Optical Switching Based on Fiber

The optical performances of the Fiber Bragg Gratings (FBG) all-optical switches are studied under the case of the cross-phase modulation (XPM). The expressions of the switching power threshold in the different detuning range are given. The influence of parameter about different detuning and couple ratio to the threshold of switching power and extinction ratio of devices is also studied.