Title :
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
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;
Journal_Title :
Terahertz Science and Technology, IEEE Transactions on
DOI :
10.1109/TTHZ.2014.2355179
