{"title":"基于矩形 NLP 泵浦的全硅光纤超平近红外-近红外超连续光源","authors":"Zhuang Wang, Ding Niu, Hao Lei, Xinsheng Zhao, Jianfeng Li, Heping Li, Yong Liu","doi":"10.1016/j.optlastec.2024.111791","DOIUrl":null,"url":null,"abstract":"<div><p>We present, for the first time, a watt-level ultra-flat all-silica fiber supercontinuum (SC) source spanning from the near-infrared (NIR) to mid-infrared (MIR) region with negligible pump residuals. This SC source is pumped by amplified 1.57-μm rectangular noise-like pulses (NLPs), whose broad spectral and flat-top temporal characteristics enhance the spectral flatness and coverage of SC spectra. By cascading a piece of highly nonlinear silica fiber (HNLF), a SC ranging from 0.91 to 2.92 µm is obtained with a 3-dB bandwidth of ∼ 716.1 nm, a 10-dB bandwidth of ∼ 1533.6 nm, and an average power of 2.08 W. To our best knowledge, the spectral coverage, 3-dB, and 10-dB bandwidths represent the highest achieved levels for a watt-level all-silica fiber SC source covering the range from the NIR to MIR. Our system offers a simple and easily implemented solution for an ultra-flat NIR-to-MIR SC source, promising significant applications in optical coherence tomography and chemical detection.</p></div>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":null,"pages":null},"PeriodicalIF":5.4000,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ultra-flat NIR-to-MIR supercontinuum source with all-silica fibers based on rectangular NLP pumping\",\"authors\":\"Zhuang Wang, Ding Niu, Hao Lei, Xinsheng Zhao, Jianfeng Li, Heping Li, Yong Liu\",\"doi\":\"10.1016/j.optlastec.2024.111791\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>We present, for the first time, a watt-level ultra-flat all-silica fiber supercontinuum (SC) source spanning from the near-infrared (NIR) to mid-infrared (MIR) region with negligible pump residuals. This SC source is pumped by amplified 1.57-μm rectangular noise-like pulses (NLPs), whose broad spectral and flat-top temporal characteristics enhance the spectral flatness and coverage of SC spectra. By cascading a piece of highly nonlinear silica fiber (HNLF), a SC ranging from 0.91 to 2.92 µm is obtained with a 3-dB bandwidth of ∼ 716.1 nm, a 10-dB bandwidth of ∼ 1533.6 nm, and an average power of 2.08 W. To our best knowledge, the spectral coverage, 3-dB, and 10-dB bandwidths represent the highest achieved levels for a watt-level all-silica fiber SC source covering the range from the NIR to MIR. Our system offers a simple and easily implemented solution for an ultra-flat NIR-to-MIR SC source, promising significant applications in optical coherence tomography and chemical detection.</p></div>\",\"PeriodicalId\":4,\"journal\":{\"name\":\"ACS Applied Energy Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.4000,\"publicationDate\":\"2024-09-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Applied Energy Materials\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0030399224012490\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Energy Materials","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0030399224012490","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Ultra-flat NIR-to-MIR supercontinuum source with all-silica fibers based on rectangular NLP pumping
We present, for the first time, a watt-level ultra-flat all-silica fiber supercontinuum (SC) source spanning from the near-infrared (NIR) to mid-infrared (MIR) region with negligible pump residuals. This SC source is pumped by amplified 1.57-μm rectangular noise-like pulses (NLPs), whose broad spectral and flat-top temporal characteristics enhance the spectral flatness and coverage of SC spectra. By cascading a piece of highly nonlinear silica fiber (HNLF), a SC ranging from 0.91 to 2.92 µm is obtained with a 3-dB bandwidth of ∼ 716.1 nm, a 10-dB bandwidth of ∼ 1533.6 nm, and an average power of 2.08 W. To our best knowledge, the spectral coverage, 3-dB, and 10-dB bandwidths represent the highest achieved levels for a watt-level all-silica fiber SC source covering the range from the NIR to MIR. Our system offers a simple and easily implemented solution for an ultra-flat NIR-to-MIR SC source, promising significant applications in optical coherence tomography and chemical detection.
期刊介绍：
ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.
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