Novel ultrafast parametric systems: high repetition rate single-pass OPG and fibre-feedback OPO
| Autor: | Pete Smith, D.C. Hanna, J. Aus der Au, Rüdiger Paschotta, Thomas Südmeyer, Graeme W. Ross, Ursula Keller |
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| Rok vydání: | 2001 |
| Předmět: |
Materials science
Acoustics and Ultrasonics business.industry Lithium niobate Physics::Optics Pulse duration Nonlinear optics Laser pumping Condensed Matter Physics Laser Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention chemistry.chemical_compound Optics chemistry law Optical parametric oscillator business Ultrashort pulse Parametric statistics |
| Zdroj: | Journal of Physics D: Applied Physics. 34:2433-2439 |
| ISSN: | 1361-6463 0022-3727 |
| Popis: | We describe two novel parametric systems for wavelength-tunable ultrashort pulse generation in the spectral range around 1.5 µm. We demonstrate the first single-pass optical parametric generator (OPG) that is directly pumped by a mode-locked laser at the full laser repetition rate of 35 MHz, obtaining up to 500 mW of average signal power with a pulse duration of 300 fs. We also report on a novel type of synchronously pumped high-gain optical parametric oscillator (OPO) with feedback through a single-mode fibre. We compare two fibre-feedback OPO systems, generating multi-watt average signal powers in 10 ps and 800 fs pulses. Both the OPG and fibre-feedback OPO system require a high parametric gain, which is achieved in periodically poled nonlinear crystals of LiNbO3 and LiTaO3, pumped with recently developed passively mode-locked all-solid-state lasers with very high average output power. |
| Databáze: | OpenAIRE |
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