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

作　　者：ROBIN MEVERT YULIYA BINHAMMER CHRISTIAN M.DIETRICH LUISE BEICHERT JOSéR.CARDOSO DE ANDRADE THOMAS BINHAMMER JINTAO FAN UWE MORGNER 

机构地区：[1]Institute of Quantum Optics,Leibniz University Hannover,Welfengarten 1,D-30167 Hannover,Germany [2]Cluster of Excellence PhoenixD,Welfengarten 1,D-30167 Hannover,Germany [3]neoLASE GmbH,Hollerithallee 17,D-30419 Hannover,Germany

出　　处：《Photonics Research》2021年第9期1715-1718,共4页光子学研究（英文版）

基　　金：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)。

摘　　要：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 m W 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.

关 键 词：TUNABLE POWER tuning 

分 类 号：TN752[电子电信—电路与系统]