All-optical wavelength conversion integrated chip based on transient chirp jump

Abstract

The invention discloses an all-optical wavelength conversion integrated chip based on transient chirp jump and belongs to the field of photoelectron. The integrated chip comprises a semiconductor optical amplifier, an array waveguide grating and a delay interferometer, wherein the semiconductor optical amplifier, the array waveguide grating and the delay interferometer are connected sequentially and are integrated on a same semiconductor substrate, thereby forming a chip; an input end of the semiconductor optical amplifier is connected with an optical power coupler through an optical fiber; the delay interferometer is connected with the optical fiber; and the optical fiber is arranged at an output end of the integrated chip. According to the all-optical wavelength conversion integrated chip based on the transient chirp jump, a crossing gain modulating effect of the semiconductor optical amplifier is utilized to modulate a signal on pump light to detecting light different in wavelength; under the blue shift filtering action of the array waveguide grating, an ultrafast transient chirp jump dynamic process is extracted; the limitation of slower gain recovery time of the semiconductor optical amplifier to the operating rate is overcome; the speed of wavelength conversion is increased; the integrated chip has the characteristics of high wavelength conversion speed, small volume, easiness in integrating, and the like; the size of the whole all-optical wavelength conversion integrated chip can be reduced to 4.5mm*2mm; and the all-optical wavelength conversion integrated chip can be applied to a routing system of the next generation optical network.

Description

technical field [0001] The invention relates to an all-optical signal processing technology in the field of optoelectronic technology, in particular to an all-optical wavelength conversion integrated chip based on a transient chirp transition. Background technique [0002] In wavelength division multiplexing optical communication network, wavelength conversion is a key technology to solve wavelength competition, realize wavelength reuse and non-blocking wavelength routing. It modulates the digital signal carried by the pump optical signal that requires wavelength conversion to another probe optical signal with a wavelength different from that of the pump optical signal, such as figure 1 As shown, the input wavelength at the first optical input end of the wavelength conversion device is λ pump The pulsed light carrying the digital signal is used as the pump light, and at the same time, the input wavelength is λ at the second optical input port probe The continuous light of ...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned prior art, the object of the present invention is to provide an all-optical wavelength conversion integrated chip based on a transient chirp transition with fast wavelength conversion speed, small volume and easy integration. The technical problems it aims to solve are: Some wavelength conversion devices need tunable filters to filter out the pump light, but the existing filters are passive devices, and the semiconductor optical amplifier is an active device. It is difficult to integrate the two together, which leads to wavelength The conversion device is bulky and cannot be integrated, miniaturized and commercialized

Images