Patent ID: 8275264
Filing Date: 2012-09-25
Classification: H04B

Abstract:
1. An apparatus for controlling optical waveform, comprising: an input port which inputs a signal light having a modulating frequency and a signal light power; a pump light generator which generates a pulsed pump light having a pulsed pump light power and a frequency that is 1.5 times higher, or more, than the modulating frequency of the signal light; a nonlinear optical medium which transmits together the signal light from the input port and the pulsed pump light from the pump light generator, the nonlinear optical medium having a gain of the signal light based on a nonlinear optical effect; and a power adjustor which adjusts a relative power of the signal light power and the pulsed pump light power so that the gain of the signal light in the nonlinear optical medium decreases with an increase of the signal light power.