Versatile spectrally shapeable multi-mode terahertz system

M. Scheller; M. Stecher; M. Gerhard; M. Koch

doi:10.1007/s00340-011-4774-y

Versatile spectrally shapeable multi-mode terahertz system

M. Scheller, M. Stecher, M. Gerhard, M. Koch

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

We present a multimode continuous wave terahertz spectrometer driven by a compact laser diode with a tunable spectrum. An external feedback based on two optical gratings into the diode allows us to shape the laser emission spectrum, and hence the temporal shape of the terahertz signals. In particular, we show a power enhancement of a factor of ten for individual regions of the spectrum to gain a signal-to-noise ratio in the frequency range of interest.

Original language	English (US)
Pages (from-to)	81-84
Number of pages	4
Journal	Applied Physics B: Lasers and Optics
Volume	106
Issue number	1
DOIs	https://doi.org/10.1007/s00340-011-4774-y
State	Published - Jan 2012
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)
Physics and Astronomy(all)

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abstract = "We present a multimode continuous wave terahertz spectrometer driven by a compact laser diode with a tunable spectrum. An external feedback based on two optical gratings into the diode allows us to shape the laser emission spectrum, and hence the temporal shape of the terahertz signals. In particular, we show a power enhancement of a factor of ten for individual regions of the spectrum to gain a signal-to-noise ratio in the frequency range of interest.",

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AB - We present a multimode continuous wave terahertz spectrometer driven by a compact laser diode with a tunable spectrum. An external feedback based on two optical gratings into the diode allows us to shape the laser emission spectrum, and hence the temporal shape of the terahertz signals. In particular, we show a power enhancement of a factor of ten for individual regions of the spectrum to gain a signal-to-noise ratio in the frequency range of interest.

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Versatile spectrally shapeable multi-mode terahertz system

Abstract

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