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Journal Article
Frequency Modulation Based Continuous-Wave Terahertz Homodyne System
- Authors
- Il-Min Lee, Namje Kim, Eui Su Lee, Sang-Pil Han, Kiwon Moon, Kyung Hyun Park
- Issue Date
- 2015-01
- Citation
- Optics Express, v.23, no.2, pp.846-858
- ISSN
- 1094-4087
- Publisher
- Optical Society of America(OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- In this study, inspired by the frequency-modulated continuous-wave (FMCW) method, an operation scheme of continuous-wave (CW) terahertz (THz) homodyne system is proposed and evaluated. For this purpose, we utilized the fast and stable wavelength tuning characteristics of a dual-mode laser (DML) as a beating source. Using the frequency-modulated THz waves generated by DML, a cost-effective and robust operation of CW THz system to be applicable to the measurements of thickness or refractive index of a sample is demonstrated. We believe that the proposed scheme shows a potential to the implementations of compact and fast CW THz measurement systems that can be useful in many THz applications.
- KSP Keywords
- Continuous-wave terahertz, Dual-mode laser, Frequency modulation(FM), Operation scheme, THz applications, THz measurement, THz system, THz waves, Tuning characteristics, Wavelength tuning, continuous wave(CW)
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
