{"title":"2.79 μm掺杂Er3+的氟化物光纤环形振荡器实现了瓦级单频激光。","authors":"Yuanbao Zhang, Hongyu Luo, Chenhao Sun, Xinying Tan, Xiangyu Zhao, Jianfeng Li, Yong Liu","doi":"10.1364/OL.576990","DOIUrl":null,"url":null,"abstract":"<p><p>In this Letter, we present watt-level single-frequency (SF) mid-infrared (MIR) laser generation directly from a fiber oscillator, for the first time, to the best of our knowledge. Based on the high-gain ~2.8 μm Er<sup>3+</sup>-doped fluoride fiber platform, a unidirectional ring cavity has been employed to eliminate the detrimental spatial hole burning effect, thereby suppressing, to some extent, mode hopping and multi-longitudinal-mode behaviors, while a germanium etalon and a diffraction grating are incorporated into the cavity to realize single longitudinal mode selection based on their combined filtering effects. Ultimately, stable SF lasing at 2.79 μm with a maximum power of 1.16 W has been achieved, exhibiting a linewidth narrower than 500 kHz. This work highlights the great potential of the fluoride fiber ring oscillator for generating high-power SF MIR laser.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 19","pages":"6249-6252"},"PeriodicalIF":3.3000,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Watt-level single-frequency lasing enabled by an Er<sup>3+</sup>-doped fluoride fiber ring oscillator at 2.79 μm.\",\"authors\":\"Yuanbao Zhang, Hongyu Luo, Chenhao Sun, Xinying Tan, Xiangyu Zhao, Jianfeng Li, Yong Liu\",\"doi\":\"10.1364/OL.576990\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>In this Letter, we present watt-level single-frequency (SF) mid-infrared (MIR) laser generation directly from a fiber oscillator, for the first time, to the best of our knowledge. Based on the high-gain ~2.8 μm Er<sup>3+</sup>-doped fluoride fiber platform, a unidirectional ring cavity has been employed to eliminate the detrimental spatial hole burning effect, thereby suppressing, to some extent, mode hopping and multi-longitudinal-mode behaviors, while a germanium etalon and a diffraction grating are incorporated into the cavity to realize single longitudinal mode selection based on their combined filtering effects. Ultimately, stable SF lasing at 2.79 μm with a maximum power of 1.16 W has been achieved, exhibiting a linewidth narrower than 500 kHz. This work highlights the great potential of the fluoride fiber ring oscillator for generating high-power SF MIR laser.</p>\",\"PeriodicalId\":19540,\"journal\":{\"name\":\"Optics letters\",\"volume\":\"50 19\",\"pages\":\"6249-6252\"},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2025-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Optics letters\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1364/OL.576990\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OL.576990","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
Watt-level single-frequency lasing enabled by an Er3+-doped fluoride fiber ring oscillator at 2.79 μm.
In this Letter, we present watt-level single-frequency (SF) mid-infrared (MIR) laser generation directly from a fiber oscillator, for the first time, to the best of our knowledge. Based on the high-gain ~2.8 μm Er3+-doped fluoride fiber platform, a unidirectional ring cavity has been employed to eliminate the detrimental spatial hole burning effect, thereby suppressing, to some extent, mode hopping and multi-longitudinal-mode behaviors, while a germanium etalon and a diffraction grating are incorporated into the cavity to realize single longitudinal mode selection based on their combined filtering effects. Ultimately, stable SF lasing at 2.79 μm with a maximum power of 1.16 W has been achieved, exhibiting a linewidth narrower than 500 kHz. This work highlights the great potential of the fluoride fiber ring oscillator for generating high-power SF MIR laser.
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The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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