High-Power High-Brightness Terahertz Source Based on Nonlinear Optical Crystal Fiber

Pengxiang Liu; Wei Shi; Degang Xu; Xinzheng Zhang; Jianquan Yao; Robert A. Norwood; Nasser Peyghambarian

doi:10.1109/JSTQE.2015.2475619

High-Power High-Brightness Terahertz Source Based on Nonlinear Optical Crystal Fiber

Pengxiang Liu, Wei Shi, Degang Xu, Xinzheng Zhang, Jianquan Yao, Robert A. Norwood, Nasser Peyghambarian

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

A nonlinear crystal fiber converter for terahertz (THz) difference frequency generation (DFG) is proposed. This axisymmetric structure consists of a periodically inverted GaAs core clad with index-matched chalcogenide glass, which functions as a single-mode fiber for THz radiation to prevent its diffraction and achieve efficient optical-to-THz conversion. The process of DFG between ps-pulses in the crystal fiber is investigated by developing the guided-wave coupled-mode equations for quasi-monochromatic pulses. The output power, spectral power density, and brightness are analyzed, based on the calculations of the dynamic of energy conversion and the characteristics of the THz beam focusing. High output power as well as excellent beam quality contributes to the high brightness of the presented THz crystal fiber source.

Original language	English (US)
Article number	7234858
Pages (from-to)	360-364
Number of pages	5
Journal	IEEE Journal of Selected Topics in Quantum Electronics
Volume	22
Issue number	2
DOIs	https://doi.org/10.1109/JSTQE.2015.2475619
State	Published - Mar 1 2016

Keywords

Brightness
Difference frequency generation
Single-mode fiber
Terahertz-wave generation

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/JSTQE.2015.2475619

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title = "High-Power High-Brightness Terahertz Source Based on Nonlinear Optical Crystal Fiber",

abstract = "A nonlinear crystal fiber converter for terahertz (THz) difference frequency generation (DFG) is proposed. This axisymmetric structure consists of a periodically inverted GaAs core clad with index-matched chalcogenide glass, which functions as a single-mode fiber for THz radiation to prevent its diffraction and achieve efficient optical-to-THz conversion. The process of DFG between ps-pulses in the crystal fiber is investigated by developing the guided-wave coupled-mode equations for quasi-monochromatic pulses. The output power, spectral power density, and brightness are analyzed, based on the calculations of the dynamic of energy conversion and the characteristics of the THz beam focusing. High output power as well as excellent beam quality contributes to the high brightness of the presented THz crystal fiber source.",

keywords = "Brightness, Difference frequency generation, Single-mode fiber, Terahertz-wave generation",

author = "Pengxiang Liu and Wei Shi and Degang Xu and Xinzheng Zhang and Jianquan Yao and Norwood, {Robert A.} and Nasser Peyghambarian",

note = "Funding Information: This work was supported by the National Basic Research Program of China (973) under Grant 2014CB339802, the National Natural Science Foundation of China under Grants 61505089, 61275102, 61335013, 61172010, and 61471257, the Doctoral Fund of Ministry of Education (No. 20130032110051), the US NSF Engineering Center CIAN, and the TRIF Photonics at University of Arizona. Publisher Copyright: {\textcopyright} 2015 IEEE.",

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doi = "10.1109/JSTQE.2015.2475619",

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AU - Liu, Pengxiang

AU - Shi, Wei

AU - Xu, Degang

AU - Zhang, Xinzheng

AU - Yao, Jianquan

AU - Norwood, Robert A.

AU - Peyghambarian, Nasser

N1 - Funding Information: This work was supported by the National Basic Research Program of China (973) under Grant 2014CB339802, the National Natural Science Foundation of China under Grants 61505089, 61275102, 61335013, 61172010, and 61471257, the Doctoral Fund of Ministry of Education (No. 20130032110051), the US NSF Engineering Center CIAN, and the TRIF Photonics at University of Arizona. Publisher Copyright: © 2015 IEEE.

PY - 2016/3/1

Y1 - 2016/3/1

N2 - A nonlinear crystal fiber converter for terahertz (THz) difference frequency generation (DFG) is proposed. This axisymmetric structure consists of a periodically inverted GaAs core clad with index-matched chalcogenide glass, which functions as a single-mode fiber for THz radiation to prevent its diffraction and achieve efficient optical-to-THz conversion. The process of DFG between ps-pulses in the crystal fiber is investigated by developing the guided-wave coupled-mode equations for quasi-monochromatic pulses. The output power, spectral power density, and brightness are analyzed, based on the calculations of the dynamic of energy conversion and the characteristics of the THz beam focusing. High output power as well as excellent beam quality contributes to the high brightness of the presented THz crystal fiber source.

AB - A nonlinear crystal fiber converter for terahertz (THz) difference frequency generation (DFG) is proposed. This axisymmetric structure consists of a periodically inverted GaAs core clad with index-matched chalcogenide glass, which functions as a single-mode fiber for THz radiation to prevent its diffraction and achieve efficient optical-to-THz conversion. The process of DFG between ps-pulses in the crystal fiber is investigated by developing the guided-wave coupled-mode equations for quasi-monochromatic pulses. The output power, spectral power density, and brightness are analyzed, based on the calculations of the dynamic of energy conversion and the characteristics of the THz beam focusing. High output power as well as excellent beam quality contributes to the high brightness of the presented THz crystal fiber source.

KW - Brightness

KW - Difference frequency generation

KW - Single-mode fiber

KW - Terahertz-wave generation

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High-Power High-Brightness Terahertz Source Based on Nonlinear Optical Crystal Fiber

Abstract

Keywords

ASJC Scopus subject areas

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