Academic Journal
Highly coherent mid-IR supercontinuum by self-defocusing solitons in lithium niobate waveguides with all-normal dispersion
| العنوان: | Highly coherent mid-IR supercontinuum by self-defocusing solitons in lithium niobate waveguides with all-normal dispersion |
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| المؤلفون: | Guo, Hairun, Zhou, Binbin, Zeng, Xianglong, Bache, Morten |
| المصدر: | Guo , H , Zhou , B , Zeng , X & Bache , M 2014 , ' Highly coherent mid-IR supercontinuum by self-defocusing solitons in lithium niobate waveguides with all-normal dispersion ' , Optics Express , vol. 22 , no. 10 , pp. 12211-12225 . https://doi.org/10.1364/OE.22.012211 |
| سنة النشر: | 2014 |
| المجموعة: | Technical University of Denmark: DTU Orbit / Danmarks Tekniske Universitet |
| مصطلحات موضوعية: | Dispersions, Optical pumping, Refractive index, Supercontinuum generation, Waveguides, All-normal dispersions, Alternative designs, Lithium Niobate Waveguide, Quasi phase matching, Single-cycle pulse, Soliton compression, Tunneling effects, Waveguide dispersions, Solitons |
| الوصف: | We numerically investigate self-defocusing solitons in a lithium niobate (LN) waveguide designed to have a large refractive index (RI) change. The waveguide evokes strong waveguide dispersion and all-normal dispersion is found in the entire guiding band spanning the near-IR and the beginning of the mid-IR. Meanwhile, a self-defocusing nonlinearity is invoked by the cascaded (phase-mismatched) second-harmonic generation under a quasi-phase-matching pitch. Combining this with the all-normal dispersion, mid-IR solitons can form and the waveguide presents the first all-nonlinear and solitonic device where no linear dispersion (i.e. non-solitonic) regimes exist within the guiding band. Soliton compressions at 2 mm and 3 mm are investigated, with nano-joule single cycle pulse formations and highly coherent octave-spanning supercontinuum generations. With an alternative design on the waveguide dispersion, the soliton spectral tunneling effect is also investigated, with which few-cycle pico-joule pulses at 2 mm are formed by a near-IR pump. © 2014 Optical Society of America. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://orbit.dtu.dk/en/publications/f5349dcb-1cc5-41f4-8f49-96c0b1dd6455 |
| DOI: | 10.1364/OE.22.012211 |
| الاتاحة: | https://orbit.dtu.dk/en/publications/f5349dcb-1cc5-41f4-8f49-96c0b1dd6455 https://doi.org/10.1364/OE.22.012211 https://backend.orbit.dtu.dk/ws/files/96647565/oe_22_10_12211.pdf |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.C1E4B7A0 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1364/OE.22.012211 |
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