Coherent supercontinuum generation in all-normal dispersion Si 3 N 4 waveguides
| العنوان: | Coherent supercontinuum generation in all-normal dispersion Si 3 N 4 waveguides |
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| المؤلفون: | Rebolledo Salgado, Israel, 1992, Ye, Zhichao, 1991, Christensen, Simon, Lei, Fuchuan, 1987, Twayana, Krishna Sundar, 1986, Schröder, Jochen, 1976, Zelan, M., Torres Company, Victor, 1981 |
| المصدر: | Dark-Soliton Engineering in Microresonator Frequency Combs (DarkComb) Flerdimensionell koherentkommunikation med mikrofrekvenskammar Optics Express Raw data for: Coherent supercontinuum generation in all-normal dispersion Si3N4 waveguides. 30(6):8641-8651 |
| الوصف: | Spectral broadening of optical frequency combs with high repetition rate is of significant interest in optical communications, radio-frequency photonics and spectroscopy. Silicon nitride waveguides (Si3N4) in the anomalous dispersion region have shown efficient supercontinuum generation spanning an octave-bandwidth. However, the broadening mechanism in this regime is usually attained with femtosecond pulses in order to maintain the coherence. Supercontinuum generation in the normal dispersion regime is more prone to longer (ps) pulses, but the implementation in normal dispersion silicon nitride waveguides is challenging as it possesses strong requirements in propagation length and losses. Here, we experimentally demonstrate the use of a Si3N4 waveguide to perform coherent spectral broadening using pulses in the picosecond regime with high repetition rate. Moreover, our work explores the formation of optical wave breaking using a higher energy pulse which enables the generation of a coherent octave spanning spectrum. These results offer a new prospect for coherent broadening using long duration pulses and replacing bulky optical components. |
| وصف الملف: | electronic |
| URL الوصول: | https://research.chalmers.se/publication/529084 https://research.chalmers.se/publication/529084/file/529084_Fulltext.pdf |
| قاعدة البيانات: | SwePub |
| تدمد: | 10944087 10944087 |
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| DOI: | 10.1364/OE.450987 |