A Terahertz Wave Parametric Amplifier With a Gain of 55 dB

We report a terahertz (THz) wave amplifier based on optical parametric processes in magnesium-oxide-doped lithium niobate (MgO:LiNbO 3 ) 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 TH...

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Bibliographic Details
Published in:IEEE transactions on terahertz science and technology 2014-11, Vol.4 (6), p.753-755
Main Authors: Taira, Yusuke, Tripathi, Saroj R., Murate, Kosuke, Hayashi, Shin'ichiro, Nawata, Kouji, Minamide, Hiroaki, Kawase, Kodo
Format: Article
Language:English
Subjects:
Crystals
Gain
Laser beams
Microchip lasers
Nonlinear crystal
Optical pulses
parametric sources
Pump lasers
Submillimeter wave technology
terahertz (THz) wave
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Summary:We report a terahertz (THz) wave amplifier based on optical parametric processes in magnesium-oxide-doped lithium niobate (MgO:LiNbO 3 ) 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.
ISSN:2156-342X
2156-3446
DOI:10.1109/TTHZ.2014.2355179