Patent ID: 6043927
Filing Date: 2000-03-28
Classification: G02F

Abstract:
A wavelength conversion device having a conversion efficiency comprising:a coupler having at least first and second input ports and at least a first output port;a first single mode waveguide fiber, propagating signal light pulses of wavelength .lambda..sub.s, connected to the first input port;a second single mode waveguide fiber, propagating pump light pulses of wavelength .lambda..sub.p, connected to the second input port;the signal pulses and the pump pulses exiting the coupler through the first output port which is connected to a first end of a third single mode waveguide fiber having a zero dispersion wavelength .lambda..sub.O, the signal pulses and the pump pulses being synchronized to overlap at least partially for at least a portion of their travel time in the third waveguide fiber;in which, .lambda..sub.p is greater than .lambda..sub.0 and the third waveguide is characterized by a non-linearity constant greater than about 3 (W-km).sup.-1 and the conversion efficiency is not less than about 10 dB.