دورية أكاديمية
Raman amplification at 2.2 μm in silicon core fibers with prospects for extended mid-infrared source generation
| العنوان: | Raman amplification at 2.2 μm in silicon core fibers with prospects for extended mid-infrared source generation |
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| المؤلفون: | Meng Huang, Shiyu Sun, Than S. Saini, Qiang Fu, Lin Xu, Dong Wu, Haonan Ren, Li Shen, Thomas W. Hawkins, John Ballato, Anna C. Peacock |
| المصدر: | Light: Science & Applications, Vol 12, Iss 1, Pp 1-8 (2023) |
| بيانات النشر: | Nature Publishing Group, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Applied optics. Photonics LCC:Optics. Light |
| مصطلحات موضوعية: | Applied optics. Photonics, TA1501-1820, Optics. Light, QC350-467 |
| الوصف: | Abstract Raman scattering provides a convenient mechanism to generate or amplify light at wavelengths where gain is not otherwise available. When combined with recent advancements in high-power fiber lasers that operate at wavelengths ~2 μm, great opportunities exist for Raman systems that extend operation further into the mid-infrared regime for applications such as gas sensing, spectroscopy, and biomedical analyses. Here, a thulium-doped fiber laser is used to demonstrate Raman emission and amplification from a highly nonlinear silicon core fiber (SCF) platform at wavelengths beyond 2 μm. The SCF has been tapered to obtain a micrometer-sized core diameter (~1.6 μm) over a length of 6 cm, with losses as low as 0.2 dB cm−1. A maximum on-off peak gain of 30.4 dB was obtained using 10 W of peak pump power at 1.99 μm, with simulations indicating that the gain could be increased to up to ~50 dB by extending the SCF length. Simulations also show that by exploiting the large Raman gain and extended mid-infrared transparency of the SCF, cascaded Raman processes could yield tunable systems with practical output powers across the 2–5 μm range. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2047-7538 |
| Relation: | https://doaj.org/toc/2047-7538 |
| DOI: | 10.1038/s41377-023-01250-y |
| URL الوصول: | https://doaj.org/article/c90f8df7d8364d0dad2eca30bb91f892 |
| رقم الأكسشن: | edsdoj.90f8df7d8364d0dad2eca30bb91f892 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 20477538 |
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| DOI: | 10.1038/s41377-023-01250-y |