Preprint article · Journal article
Parametrically tunable soliton-induced resonant radiation by three-wave mixing
Department of Photonics Engineering, Technical University of Denmark1
Ultrafast Infrared and Terahertz Science, Department of Photonics Engineering, Technical University of Denmark2
Ultrafast Nonlinear Optics group, Department of Photonics Engineering, Technical University of Denmark3
Shanghai Jiao Tong University4
National Central University5
Metamaterials, Department of Photonics Engineering, Technical University of Denmark6
We show that a temporal soliton can induce resonant radiation by three-wave mixing nonlinearities. This constitutes a new class of resonant radiation whose spectral positions are parametrically tunable. The experimental verification is done in a periodically poled lithium niobate crystal, where a femtosecond near-IR soliton is excited and resonant radiation waves are observed exactly at the calculated soliton phasematching wavelengths via the sum- and difference-frequency generation nonlinearities.
This extends the supercontinuum bandwidth well into the mid IR to span 550–5000 nm, and the mid-IR edge is parametrically tunable over 1000 nm by changing the three-wave mixing phase-matching condition. The results are important for the bright and broadband supercontinuum generation and for the frequency comb generation in quadratic nonlinear microresonators.
Language: | English |
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Year: | 2017 |
Pages: | 143901 |
ISSN: | 10797114 and 00319007 |
Types: | Preprint article and Journal article |
DOI: | 10.1103/PhysRevLett.118.143901 |
ORCIDs: | Zhou, Binbin and Bache, Morten |