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Conference 12420 > Paper 12420-14
Paper 12420-14

Rapid THz-TDS enabled by single-cavity solid-state GHz dual-comb oscillator

31 January 2023 • 8:30 AM - 8:50 AM PST | Moscone Center, Room 160 (Upper Mezzanine South)

Abstract

We present THz-TDS with a low-noise single-cavity dual-comb GHz oscillator. This solid-state laser delivers two mutually coherent combs with 70-fs pulses, 1055-nm center wavelength, 110 mW per comb, and a repetition rate difference up to 100 kHz. In a proof of principle THz experiment, we direct the two combs onto two photoconductive antennae to efficiently generate and electrooptically sample the THz waveform. At a repetition rate difference of 37 kHz we achieve 40-dB dynamic range in a 2-s integration time for a spectral resolution of 2 GHz allowing to resolve absorption features up to 3 THz.

Presenter

Benjamin Willenberg
ETH Zurich (Switzerland)
Presenter/Author
Benjamin Willenberg
ETH Zurich (Switzerland)
Author
Christopher R. Phillips
ETH Zurich (Switzerland)
Author
Justinas Pupeikis
ETH Zurich (Switzerland)
Author
Lars Liebermeister
Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut, HHI (Germany)
Author
Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut, HHI (Germany)
Author
Björn Globisch
Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut, HHI (Germany)
Author
ETH Zurich (Switzerland)