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Updated: Jul 18, 2025
10:54
Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
Published on: July 8, 2013
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TiN/Ti3C2 heterojunction-based photonic device for optical Kerr switch
Ke Wang1, Qidong Liu1, Zhenhong Wang1
1Institute of Translational Medicine, First Affiliated Hospital (Shenzhen Second People's Hospital), Health Science Center, College of Electronics and Information Engineering, Shenzhen University 518060 China yujiewang@email.szu.edu.cn wenwubin09@163.com.
RSC Advances
|August 21, 2023
Summary
Titanium nitride/titanium carbide (TiN/Ti3C2) nanomaterials enable a novel all-optical Kerr switch. This device achieves amplitude modulation for high-speed fiber communication, offering a potential solution to electronic bottlenecks.
Area of Science:
- Materials Science
- Optoelectronics
- Nanotechnology
Background:
- Titanium nitride/titanium carbide (TiN/Ti3C2) exhibits excellent optoelectronic properties, finding applications in biomedicine, sensing, and optical switching.
- Advancements in communication networks necessitate improved signal processing, driving the development of all-optical signal processing to overcome electronic transfer rate limitations.
Purpose of the Study:
- To propose and demonstrate a novel all-optical Kerr switch based on a TiN/Ti3C2 heterojunction-coated microfiber (THM).
- To investigate the amplitude modulation capabilities of the THM-based device for high-speed optical signal processing.
Main Methods:
- Fabrication of a TiN/Ti3C2 heterojunction-coated microfiber (THM).
- Simultaneous injection of control and signal light into the THM device.
- Modulation of signal light intensity by controlling the on/off state of the control light.
Main Results:
- Successful demonstration of an all-optical Kerr switch utilizing the nonlinear optical effect of the THM.
- Achieved amplitude modulation of signal light by controlling the intensity of the control light.
- Obtained a maximum extinction ratio of 27 dB for the signal light with 200 mW control light power.
Conclusions:
- The THM-based optical Kerr switch is a compact device with significant potential for integration into high-speed fiber communication networks.
- This technology offers a viable method for all-optical signal processing leveraging nonlinear optical effects.
- The device shows broad prospects for applications in all-optical signal processing, robotics, and high-speed communication systems.
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