Nonlinearity-tailored fiber laser technology for low-noise, ultra-wideband tunable femtosecond light generation

作     者：XIAOMIN LIU JESPER LAEGSGAARD ROMAN IEGOROV ASK S.SVANE F.OMER ILDAY HAOHUA TU STEPHEN A.BOPPART DMITRY TURCHINOVICH 

作者机构：DTU Fotonik Technical University of Denmark Max Planck Institute for Polymer Research Department of Physics Bilkent University National Research Tomsk Polytechnic University Institute of Power Engineering Department of Electrical and Electronics Engineering Bilkent University Biophotonics Imaging Laboratory University of Illinois at Urbana-Champaign Fakultat fur Physik Universitat Duisburg-Essen 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2017年第5卷第6期

页      面：262-273页

核心收录：

学科分类：0808[工学-电气工程] 080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Teknologi og Produktion,Det Frie Forskningsrad(FTP,DFF)(ALFIE) Research Executive Agency(REA)(EU Career Integration Grant 334324LIGHTER) H2020 European Research Council(ERC)(ERC-617521 NLL) National Cancer Institute(NCI)(1 R01 CA166309) Max-Planck-Gesellschaft(MPG) 

主　　题：length PCF Nonlinearity-tailored fiber laser technology for low-noise ultra-wideband tunable femtosecond light generation 

摘      要：The emission wavelength of a laser is physically predetermined by the gain medium used. Consequently, arbitrary wavelength generation is a fundamental challenge in the science of light. Present solutions include optical parametric generation, requiring complex optical setups and spectrally sliced supercontinuum, taking advantage of a simpler fiber technology: a fixed-wavelength pump laser pulse is converted into a spectrally very broadband output, from which the required resulting wavelength is then optically filtered. Unfortunately, this process is associated with an inherently poor noise figure, which often precludes many realistic applications of such supercontinuum sources. Here, we show that by adding only one passive optical element—a tapered photonic crystal fiber—to a fixed-wavelength femtosecond laser, one can in a very simple manner resonantly convert the laser emission wavelength into an ultra-wide and continuous range of desired wavelengths, with very low inherent noise, and without mechanical realignment of the laser. This is achieved by exploiting the double interplay of nonlinearity and chirp in the laser source and chirp and phase matching in the tapered fiber. As a first demonstration of this simple and inexpensive technology, we present a femtosecond fiber laser continuously tunable across the entire red–green–blue spectral range.