High repetition rate picosecond LiNbO3 THz parametric amplifier and parametric gain

Yuting Yang; Gang Zhao; Yue Huang; Liwen Feng; Senlin Huang; Kexin Liu

doi:10.3788/COL202018.051901

Journals >Chinese Optics Letters >Volume 18 >Issue 5 >Page 051901 > Article

Chinese Optics Letters
Vol. 18, Issue 5, 051901 (2020)

High repetition rate picosecond LiNbO₃ THz parametric amplifier and parametric gain

Yuting Yang, Gang Zhao, Yue Huang, Liwen Feng, Senlin Huang^*, and Kexin Liu

Author Affiliations

State Key Laboratory of Nuclear Physics and Technology and Institute of Heavy Ion Physics, School of Physics, Peking University, Beijing 100871, China

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DOI: 10.3788/COL202018.051901 Cite this Article Set citation alerts

Yuting Yang, Gang Zhao, Yue Huang, Liwen Feng, Senlin Huang, Kexin Liu. High repetition rate picosecond LiNbO₃ THz parametric amplifier and parametric gain[J]. Chinese Optics Letters, 2020, 18(5): 051901 Copy Citation Text

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Abstract

A high repetition rate, picosecond terahertz (THz) parametric amplifier with a LiNbO₃ (LN) crystal has been demonstrated in this work. At a 10 kHz repetition rate, a peak power of 200 W and an average power of 12 μW have been obtained over a wide range of around 2 THz; at a 100 kHz repetition rate, a maximum peak power of 18 W and an average power of 10.8 μW have been obtained. The parametric gain of the LN crystal was also investigated, and a modified Schwarz–Maier model was introduced to interpret the experimental results.

Keywords

far infrared or terahertz nonlinear optics parametric oscillators and amplifiers parametric processes