학술논문
Terahertz heterodyne spectroscopy of radio-frequency-driven frequency combs without moving parts based on telecommunication technology
Document Type
Conference
Author
Source
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) Infrared, Millimeter and Terahertz Waves (IRMMW-THz),2022 47th International Conference on. :1-2 Aug, 2022
Subject
Language
ISSN
2162-2035
Abstract
We present heterodyne spectroscopy measurements up to 0.76 THz of a frequency comb generated by a terahertz emitter driven by a near-infrared source. This source consists of a narrowband (< 100 Hz), continuous wave, 1550.12-nm, telecommunication-wavelength laser and a high-precision radio-frequency signal generator, which drives a Mach-Zehnder interferometer to produce a wideband, near-infrared frequency comb with a mode spacing and repetition rate of 10 GHz. We synchronized this source to external reference sources and evaluated its potential as a replacement for conventional, mode-locked, cavity-based laser sources in terahertz frequency combs.