High-repetition-rate tunable narrowband terahertz-wave generation based on nonlinear frequency conversion pumped by dual fiber lasers in MgO:LiNbO3

Yoshio Wada; Takumi Satoh; Yasuhiro Higashi; Yoshiharu Urata

doi:10.1117/12.2287293

23 February 2018 High-repetition-rate tunable narrowband terahertz-wave generation based on nonlinear frequency conversion pumped by dual fiber lasers in MgO:LiNbO₃

Yoshio Wada, Takumi Satoh, Yasuhiro Higashi, Yoshiharu Urata

Author Affiliations +

Proceedings Volume 10531, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XI; 1053107 (2018) https://doi.org/10.1117/12.2287293
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

We demonstrate a high-average-power, single-longitudinal-mode, and tunable terahertz-wave (THz-wave) source based on difference frequency generation (DFG) in a MgO:LiNbO₃ (MgO:LN) crystal. The DFG waves are generated using a pair of Yb-doped, pulsed fiber lasers with a master oscillator power fiber amplifier configuration. The average power of the THz-wave output reaches 1.35 mW at 1.0 THz (300 μm) at a linewidth of 7.2 GHz, and the tunability ranges from 0.34 to 1.25 THz under a pulse repetition frequency of 500 kHz. With this scheme, we constructed a compact THz-wave generation head for imaging applications. The combination of MgO:LN-DFG and the stable and robust fiber laser sources is highly promising for developing high-average-power THz-wave sources, particularly in the high-transmission sub-THz region. This approach may enable new applications of THz-wave spectroscopy in imaging and remote sensing.

Conference Presentation

Citation Download Citation

Yoshio Wada, Takumi Satoh, Yasuhiro Higashi, and Yoshiharu Urata "High-repetition-rate tunable narrowband terahertz-wave generation based on nonlinear frequency conversion pumped by dual fiber lasers in MgO:LiNbO₃", Proc. SPIE 10531, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XI, 1053107 (23 February 2018); https://doi.org/10.1117/12.2287293

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available