Herein, the efficiently high-power pulsed Raman lasers with wavelength above 2.1 μm are experimentally demonstrated relying on the stimulated Raman scattering. A tailored high-power noise-like pulse (NLP) fiber laser system centered at ≈1953 nm with a maximum output power of ≈10.9 W is served as the pump source. By directly pumping a section of highly Ge-doped silica fiber, the first pulsed Raman laser (centered at≈2139 nm) and the second pulsed Raman laser (centered at ≈2353 nm) with maximum output powers of ≈3.8 and ≈0.25 W are obtained, respectively, which represent the highest output powers of NLP at these wavelength regions, to the best of knowledge. Moreover, a high spectral purity of ≈94.3% of the first Raman laser is obtained, which indicates the significantly potential application of NLP in pulsed Raman laser. The midinfrared NLP fiber laser source will have potential applications in transparent polymer materials processing and midinfrared spectroscopy.
{"title":"Efficient Pulsed Raman Laser with Wavelength above 2.1 μm Pumped by Noise-Like Pulse","authors":"Meng Wang, Deqin Ouyang, Yu Lin, Yewang Chen, Minqiu Liu, Junqing Zhao, Xing Liu, Shuangchen Ruan","doi":"10.1002/adpr.202300342","DOIUrl":"10.1002/adpr.202300342","url":null,"abstract":"<p>Herein, the efficiently high-power pulsed Raman lasers with wavelength above 2.1 μm are experimentally demonstrated relying on the stimulated Raman scattering. A tailored high-power noise-like pulse (NLP) fiber laser system centered at ≈1953 nm with a maximum output power of ≈10.9 W is served as the pump source. By directly pumping a section of highly Ge-doped silica fiber, the first pulsed Raman laser (centered at≈2139 nm) and the second pulsed Raman laser (centered at ≈2353 nm) with maximum output powers of ≈3.8 and ≈0.25 W are obtained, respectively, which represent the highest output powers of NLP at these wavelength regions, to the best of knowledge. Moreover, a high spectral purity of ≈94.3% of the first Raman laser is obtained, which indicates the significantly potential application of NLP in pulsed Raman laser. The midinfrared NLP fiber laser source will have potential applications in transparent polymer materials processing and midinfrared spectroscopy.</p>","PeriodicalId":7263,"journal":{"name":"Advanced Photonics Research","volume":"5 9","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/adpr.202300342","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140260338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Peisheng Sun, Lai Chen, Bailiang Pan, Linhua Ye, Chengfeng Wang, Junxiang Zhang, Li-Gang Wang
Optical lattices have been widely used from classic to quantum physics. The tunable and scalable fabrication of lattices would be of great significance in lattice-based multipartite applications. In article number 2300280, Junxiang Zhang, Li-Gang Wang, and co-workers propose and demonstrate the fabrication of a 2D exotic optical lattice via spatial crosstalk between a single structured circular Airy beam and a digital spatial mask. This flexible method can steer optical lattices with axis, axial symmetry, and even high orbital kaleidoscope structures, with potential applications in integrated and scalable optical and photonic devices.