Optical signal processing apparatus, optical receiving apparatus, and optical relay apparatus
AssigneeFujitsu Limited
InventorShigeki WATANABE
Life of this patent
Estimating the term…
Abstract
An optical signal processing apparatus includes an input unit to which signal light is input; a wave coupling unit that couples the signal light from the input unit and pump light having a waveform different from that of the signal light; a first nonlinear optical medium that transmits light coupled by the wave coupling unit, the light being the signal light and the pump light; a dispersion medium that transmits the light that has been transmitted through the first nonlinear optical medium; and a second nonlinear optical medium that transmits the light that has been transmitted through the dispersion medium.
Claims11
An optical signal processing apparatus comprising:
- an input unit to which signal light is input;
- a wave coupling unit that couples the signal light from the input unit and pump light having a wavelength different from that of the signal light;
- a first nonlinear optical medium that transmits light coupled by the wave coupling unit, the light being the signal light and the pump light;
- a dispersion medium that transmits the light that has been transmitted through the first nonlinear optical medium;
- and
- a second nonlinear optical medium that transmits the light that has been transmitted through the dispersion medium, wherein
- the wave coupling unit couples the signal light with pulsed pump light as the pump light,
- the dispersion medium has a length that causes relative timing of the signal light and the pulsed pump light traveling through the dispersion medium to shift, and
- the dispersion medium has a length that causes an extent of a shift of the timing to be approximately half of a pulse interval of the pulsed pump light.
Dependencies are inferred from the claim text.