All fiber-coupled THz-TDS system with kHz measurement rate based on electronically controlled optical sampling.
Opt Lett
; 39(22): 6482-5, 2014 Nov 15.
Article
en En
| MEDLINE
| ID: mdl-25490499
ABSTRACT
We demonstrate a completely fiber-coupled terahertz (THz) time-domain spectrometer (TDS) system based on electronically controlled optical sampling with two erbium-doped femtosecond fiber lasers at a central wavelength of 1560 nm. The system employs optimized InGaAs/InAlAs photoconductive antennas for THz generation and detection. With this system, we achieve measurement rates of up to 8 kHz and up to 180 ps scan range. We further achieve 2 THz spectral bandwidth and a dynamic range of 76 dB at only 500 ms measurement time.
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Opt Lett
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2014
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Article