TiN/Ti3C2 heterojunction-based photonic device for optical Kerr switch

As one of the new nanomaterials, TiN/Ti3C2 shows excellent optoelectronic characteristics, thus it has been widely used in many applications, such as biomedicine, optical sensors, image processing, and optical switching. With the advancement of communication capabilities and communication networks, optical fiber communication has put a higher demand on signal processing. In order to overcome the limitations of the electronic transfer rate bottleneck, the concept of all-optical signal processing has been proposed. Utilizing the excellent optical nonlinear effect of the TiN/Ti3C2 heterojunction-coated microfiber (THM), a novel THM-based optical Kerr switch has been proposed. Injecting a strong control light and a signal light into the device simultaneously, and controlling the state of turn on or off of the control light, can adjust the intensity of the signal light. Based on this, the amplitude modulation of the signal light can be achieved. With a control light power of 200 mW, the maximum extinction ratio of the signal light reaches 27 dB. We believe that this type of compact device can demonstrate great potential for integration with current high-speed fiber communication networks, providing a possible method for all-optical signal processing through nonlinear effects, and has broad prospects in the field of all-optical signal processing, robots, and high-speed communication.

Automated summary

TiN/Ti3C2 is a new nanomaterial that has excellent optoelectronic characteristics and is widely used in various applications. The concept of all-optical signal processing has been proposed to overcome the limitations of electronic transfer rate bottleneck. A novel THM-based optical Kerr switch has been developed using the excellent optical nonlinear effect of TiN/Ti3C2, which can achieve amplitude modulation of the signal light and has potential for integration with high-speed fiber communication networks.