Open AccessGeneration of arbitrarily chirped and CEP-controlled terahertz pulses for dispersion compensation using an optical pulse shaping technique and a fan-out periodically poled crystal
Author(s) -
Hiroyasu Takahashi,
Y. Kawada,
Hiroshi Satozono,
Koji Takahashi,
Koyo Watanabe,
Takashi Inoue,
H. Takahashi
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.025305
Subject(s) - optics , terahertz radiation , chirp , dispersion (optics) , materials science , carrier envelope phase , ultrashort pulse , phase (matter) , pulse shaping , lithium tantalate , lithium niobate , pulse compression , bandwidth limited pulse , pulse (music) , optoelectronics , physics , laser , detector , telecommunications , radar , quantum mechanics , computer science
We constructed a system that can generate phase-controlled terahertz (THz) pulses using a fan-out periodically poled lithium tantalate crystal and an optical pulse shaper containing a spatial light modulator. The phase of each THz frequency components could be controlled by manipulating the delay time of the corresponding optical pulses. Using the system, we generated arbitrarily group-velocity-dispersion-controlled THz pulses, where the chirp parameter was 2.53 ps 2 /rad between 0.6 and 1.5 THz. In addition, we generated arbitrarily carrier-envelope-phase-controlled THz pulses in the same system. Phase-controlled THz pulses may be useful for applications such as dispersion compensation.