Noise suppression in femtosecond mid-infrared light sources

Peter Hamm; Robert A. Kaindl; Jens Stenger

doi:10.1364/OL.25.001798

Noise suppression in femtosecond mid-infrared light sources

Peter Hamm, Robert A. Kaindl, Jens Stenger

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

245 Scopus citations

Abstract

An experimental and theoretical study of intrinsic correlations and noise-suppression mechanisms in two-stage femtosecond mid-IR light sources is presented. The setup, based on parametric amplification in BBO and subsequent difference-frequency mixing in AgGaS₂, delivers ≈100-fs mid-IR pulses with 1 2-µJ energy. Exceptionally low pulse-energy f luctuations of only 0.2% in the mid-IR (λ ≈ 3-6 µm) are found, which are much smaller than the Ti:sapphire amplifer noise. The noise suppression is analyzed and found to stem from the interplay between dispersion and pump depletion.

Original language	English (US)
Pages (from-to)	1798-1800
Number of pages	3
Journal	Optics Letters
Volume	25
Issue number	24
DOIs	https://doi.org/10.1364/OL.25.001798
State	Published - Dec 15 2000
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "An experimental and theoretical study of intrinsic correlations and noise-suppression mechanisms in two-stage femtosecond mid-IR light sources is presented. The setup, based on parametric amplification in BBO and subsequent difference-frequency mixing in AgGaS2, delivers ≈100-fs mid-IR pulses with 1 2-µJ energy. Exceptionally low pulse-energy f luctuations of only 0.2% in the mid-IR (λ ≈ 3-6 µm) are found, which are much smaller than the Ti:sapphire amplifer noise. The noise suppression is analyzed and found to stem from the interplay between dispersion and pump depletion.",

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AU - Kaindl, Robert A.

AU - Stenger, Jens

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N2 - An experimental and theoretical study of intrinsic correlations and noise-suppression mechanisms in two-stage femtosecond mid-IR light sources is presented. The setup, based on parametric amplification in BBO and subsequent difference-frequency mixing in AgGaS2, delivers ≈100-fs mid-IR pulses with 1 2-µJ energy. Exceptionally low pulse-energy f luctuations of only 0.2% in the mid-IR (λ ≈ 3-6 µm) are found, which are much smaller than the Ti:sapphire amplifer noise. The noise suppression is analyzed and found to stem from the interplay between dispersion and pump depletion.

AB - An experimental and theoretical study of intrinsic correlations and noise-suppression mechanisms in two-stage femtosecond mid-IR light sources is presented. The setup, based on parametric amplification in BBO and subsequent difference-frequency mixing in AgGaS2, delivers ≈100-fs mid-IR pulses with 1 2-µJ energy. Exceptionally low pulse-energy f luctuations of only 0.2% in the mid-IR (λ ≈ 3-6 µm) are found, which are much smaller than the Ti:sapphire amplifer noise. The noise suppression is analyzed and found to stem from the interplay between dispersion and pump depletion.

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Noise suppression in femtosecond mid-infrared light sources

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