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Proceedings Paper

Terahertz radiation based on fiber-pigtailed InGaAs photoconductive antenna pumped by 1030-nm mode-locked Yb-doped fiber laser
Author(s): Ji Su Kim; Sang-Pil Han; Kiwon Moon; Han-Cheol Ryu; Kyung Hyun Park; Min Yong Jeon
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Paper Abstract

We present a terahertz (THz) radiation pumped by a passively mode-locked Yb-doped fiber laser using two fiberpigtailed log-spiral-based low-temperature-grown (LTG) InGaAs photoconductive antenna (PCA) modules. The modelocked fiber laser produces over 220 mW of the average optical power with positively chirped of 1.49 ps pulses. In order to generate THz radiation using the fiber-pigtailed PCA modules, the mode-locked optical pulses are pre-chirped with 538 fs using two diffraction gratings. We successfully achieved THz radiation over 2.0 THz using the pre-chirped pulses. We successfully observed the various absorption lines of water vapor dips in the free space of 120 mm.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103237V (23 April 2017); doi: 10.1117/12.2265379
Show Author Affiliations
Ji Su Kim, Chungnam National Univ. (Korea, Republic of)
Sang-Pil Han, Electronics and Telecommunications Research Institute (Korea, Republic of)
Kiwon Moon, Electronics and Telecommunications Research Institute (Korea, Republic of)
Han-Cheol Ryu, Sahmyook Univ. (Korea, Republic of)
Kyung Hyun Park, Electronics and Telecommunications Research Institute (Korea, Republic of)
Min Yong Jeon, Chungnam National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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