TY - JOUR

T1 - Widely tunable, high-power, femtosecond noncollinear optical parametric oscillator in the visible spectral range

AU - Mevert, Robin

AU - Binhammer, Yuliya

AU - Dietrich, Christian M.

AU - Beichert, Luise

AU - Cardoso de Andrade, José Ricardo

AU - Binhammer, Thomas

AU - Fan, Jintao

AU - Morgner, Uwe

N1 - Funding Information: Funding. Deutsche Forschungsgemeinschaft (MO 850/ 31-1, MO 850-19/2, MO 850-23/1); Germany’s Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453); European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie Agreement (713694).

PY - 2021/9

Y1 - 2021/9

N2 - Ultrafast visible radiation is of great importance for many applications ranging from spectroscopy to metrology. Because some regions in the visible range are not covered by laser gain media, optical parametric oscillators offer an added value. Besides a high-power broadband laser source, the ability to rapidly tune the frequency of pulses with high-power spectral density offers an extra benefit for experiments such as multicolor spectroscopy or imaging. Here, we demonstrate a broadband, high-power, rapidly tunable femtosecond noncollinear optical parametric oscillator with a signal tuning range of 440-720 nm in the visible range. The oscillator is pumped by the third harmonic of an Yb-fiber laser at 345 nm with a repetition rate of 50.2 MHz.Moreover, the signal wavelength is tuned by changing the cavity length only, and output powers up to 452 mW and pulse durations down to 268 fs are achieved. This is, to the best of our knowledge, the first demonstration of a quickly tunable femtosecond optical parametric oscillator that covers nearly the entire visible spectral range with high output power.

AB - Ultrafast visible radiation is of great importance for many applications ranging from spectroscopy to metrology. Because some regions in the visible range are not covered by laser gain media, optical parametric oscillators offer an added value. Besides a high-power broadband laser source, the ability to rapidly tune the frequency of pulses with high-power spectral density offers an extra benefit for experiments such as multicolor spectroscopy or imaging. Here, we demonstrate a broadband, high-power, rapidly tunable femtosecond noncollinear optical parametric oscillator with a signal tuning range of 440-720 nm in the visible range. The oscillator is pumped by the third harmonic of an Yb-fiber laser at 345 nm with a repetition rate of 50.2 MHz.Moreover, the signal wavelength is tuned by changing the cavity length only, and output powers up to 452 mW and pulse durations down to 268 fs are achieved. This is, to the best of our knowledge, the first demonstration of a quickly tunable femtosecond optical parametric oscillator that covers nearly the entire visible spectral range with high output power.

UR - http://www.scopus.com/inward/record.url?scp=85114843353&partnerID=8YFLogxK

U2 - 10.1364/PRJ.426107

DO - 10.1364/PRJ.426107

M3 - Article

AN - SCOPUS:85114843353

VL - 9

SP - 1715

EP - 1718

JO - Photonics research

JF - Photonics research

SN - 2327-9125

IS - 9

ER -