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Widely-tunable, multi-band Raman laser based on dispersion-managed thin-film lithium niobate microring resonators

التفاصيل البيبلوغرافية
العنوان: Widely-tunable, multi-band Raman laser based on dispersion-managed thin-film lithium niobate microring resonators
المؤلفون: Yanjing Zhao, Xiaoyue Liu, Kresten Yvind, Xinlun Cai, Minhao Pu
المصدر: Communications Physics, Vol 6, Iss 1, Pp 1-10 (2023)
بيانات النشر: Nature Portfolio, 2023.
سنة النشر: 2023
المجموعة: LCC:Astrophysics
LCC:Physics
مصطلحات موضوعية: Astrophysics, QB460-466, Physics, QC1-999
الوصف: Abstract Stimulated Raman scattering is an attractive way to extend the operation spectral range of optical sources. However, the spectral extension range of a tunable Raman laser is limited by the Raman frequency shift and pump tuning bandwidth. This makes it challenging to realize chip-scale, widely tunable Raman lasers, as on-chip lasers only provide limited pump power and tuning bandwidth. Here, we tackle this by dispersion engineering of a thin-film lithium niobate microring resonator, where its high-quality factor ( ~ 2.5 million) ensures a sub-milli-watt (0.8 mW) threshold for Raman lasing while its strong normal dispersion with suppressed avoided mode crossing restrains the competing Kerr comb generation process. Combining the multi-wavelength Raman gain response of lithium niobate and cascaded Raman lasing, we demonstrate a widely tunable Raman laser covering 1592–1955 nm, showing a 335-nm spectral extension range from a 94-nm-tuning-bandwidth pump laser. Our demonstration paves the way to realize chip-scale, widely-tunable Raman lasers.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2399-3650
Relation: https://doaj.org/toc/2399-3650
DOI: 10.1038/s42005-023-01477-6
URL الوصول: https://doaj.org/article/a7adf9d1a47b4af6942e16bfd0811798
رقم الأكسشن: edsdoj.7adf9d1a47b4af6942e16bfd0811798
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:23993650
DOI:10.1038/s42005-023-01477-6