A Terahertz Wave Parametric Amplifier With a Gain of 55 dB

Author

Taira, Yoichi ; Tripathi, Saroj R. ; Murate, Kosuke ; Hayashi, Shin´ichiro ; Nawata, Koji ; Minamide, Hiroaki ; Kawase, Kanta

Author_Institution

Dept. of Electr. Eng., Nagoya Univ., Nagoya, Japan

Volume

4

Issue

6

fYear

2014

fDate

Nov. 2014

Firstpage

753

Lastpage

755

Abstract

We report a terahertz (THz) wave amplifier based on optical parametric processes in magnesium-oxide-doped lithium niobate (MgO:LiNbO₃) crystals. The amplifier operates at room temperature and has a gain of 55 dB. The non-linear crystals used for the purposes of emission and amplification of the THz waves are pumped separately using a microchip laser, which leads to an enhancement of the gain in comparison with existing approaches.

Keywords

lithium compounds; magnesium compounds; microchip lasers; microwave photonics; optical parametric amplifiers; terahertz wave devices; LiNbO₃:MgO; THz wave amplification; THz wave emission; gain 55 dB; magnesium-oxide-doped lithium niobate crystals; microchip laser; nonlinear crystals; optical parametric processes; terahertz wave parametric amplifier; Crystals; Gain; Laser beams; Microchip lasers; Optical pulses; Pump lasers; Submillimeter wave technology; Nonlinear crystal; parametric sources; terahertz (THz) wave;

fLanguage

English

Journal_Title

Terahertz Science and Technology, IEEE Transactions on

Publisher

ieee

ISSN

2156-342X

Type

jour

DOI

10.1109/TTHZ.2014.2355179

Filename

6899705