Method and device of enhancing terahertz wave signals based on hollow metal waveguide optical fiber

US10663397B2 · kind B2 · utility

Assignee

• University of Shanghai for Science and Technology · CN

Inventors

• Yan Peng · Shanghai, CN
• Bowei Xu · Shanghai, CN
• Yiming Zhu · Hefei, CN
• Tengfei Zhang · Zhenjiang, CN
• Wanqing Chen · Shanghai, CN
• Binbin Qi · Shanghai, CN
• Songlin Zhuang · Shanghai, CN

Key dates

• Filing date: Jan 25, 2019
• Grant date: May 26, 2020
• Expiry date: Jan 25, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S5/0092
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device and method of enhancing terahertz wave signals based on a hollow metal waveguide are disclosed. Simple devices such as a beam splitter, multiple plane mirrors, a beam combiner and an adjustable delay system are used. Two laser beams having a wavelength of 800 nm split by the beam splitter generate a fixed time phase delay, and are converged in the hollow metal waveguide to sequentially overlap with pulse of a laser having a wavelength of 400 nm for nonlinear interaction to ionize gas in the optical fiber to generate terahertz waves. The hollow metal waveguide can converge and transmit the generated terahertz waves due to its total reflection characteristics.