Details
| Original language | English |
|---|---|
| Pages (from-to) | 27296-27303 |
| Number of pages | 8 |
| Journal | Optics express |
| Volume | 31 |
| Issue number | 17 |
| Publication status | Published - 31 Jul 2023 |
Abstract
Broadband tunable femtosecond laser pulses are of great interest in numerous fields, such as spectroscopy or imaging. Here, we report on the generation of rapidly tunable radiation in the near UV by using intracavity non-collinear sum-frequency mixing between the visible pulses of a non-collinear optical parametric oscillator (NOPO) and a near-infrared beam. The NOPO is pumped by the third harmonic of an Yb-based master oscillator fiber amplifier (MOFA). For sum-frequency mixing, remaining fundamental pulses at 1030 nm are used. With this approach, near-UV pulses in a range of 333-413 nm with average output powers up to 90mW and pulse durations from 158-240 fs are achieved. Fast tunability is demonstrated over the whole tuning range by varying just the cavity length. The system also allows for the generation of two simultaneous synchronized output pulse trains in the visible and the near-UV spectral range.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Optics express, Vol. 31, No. 17, 31.07.2023, p. 27296-27303.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Rapidly tunable femtosecond near-UV pulses from a non-collinear optical parametric oscillator
AU - Geesmann, Fridolin Jakob
AU - Mevert, Robin
AU - Zuber, David
AU - Morgner, Uwe
N1 - Funding Information: Funding. Deutsche Forschungsgemeinschaft (EXC 2122 Project ID 390833453, MO 850/ 31-1); Horizon 2020 Framework Programme (Marie Sklodowska-Curie Agreement No. 713694).
PY - 2023/7/31
Y1 - 2023/7/31
N2 - Broadband tunable femtosecond laser pulses are of great interest in numerous fields, such as spectroscopy or imaging. Here, we report on the generation of rapidly tunable radiation in the near UV by using intracavity non-collinear sum-frequency mixing between the visible pulses of a non-collinear optical parametric oscillator (NOPO) and a near-infrared beam. The NOPO is pumped by the third harmonic of an Yb-based master oscillator fiber amplifier (MOFA). For sum-frequency mixing, remaining fundamental pulses at 1030 nm are used. With this approach, near-UV pulses in a range of 333-413 nm with average output powers up to 90mW and pulse durations from 158-240 fs are achieved. Fast tunability is demonstrated over the whole tuning range by varying just the cavity length. The system also allows for the generation of two simultaneous synchronized output pulse trains in the visible and the near-UV spectral range.
AB - Broadband tunable femtosecond laser pulses are of great interest in numerous fields, such as spectroscopy or imaging. Here, we report on the generation of rapidly tunable radiation in the near UV by using intracavity non-collinear sum-frequency mixing between the visible pulses of a non-collinear optical parametric oscillator (NOPO) and a near-infrared beam. The NOPO is pumped by the third harmonic of an Yb-based master oscillator fiber amplifier (MOFA). For sum-frequency mixing, remaining fundamental pulses at 1030 nm are used. With this approach, near-UV pulses in a range of 333-413 nm with average output powers up to 90mW and pulse durations from 158-240 fs are achieved. Fast tunability is demonstrated over the whole tuning range by varying just the cavity length. The system also allows for the generation of two simultaneous synchronized output pulse trains in the visible and the near-UV spectral range.
UR - http://www.scopus.com/inward/record.url?scp=85168305786&partnerID=8YFLogxK
U2 - 10.1364/OE.498170
DO - 10.1364/OE.498170
M3 - Article
AN - SCOPUS:85168305786
VL - 31
SP - 27296
EP - 27303
JO - Optics express
JF - Optics express
SN - 1094-4087
IS - 17
ER -