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| 1 | Nonlinearity-tailored fiber laser technology for low-noise, ultra-wideband tunable femtosecond light generation显示文摘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. | XIAOMIN LIU JESPER LAEGSGAARD ROMAN IEGOROV ASK S.SVANE F.OMER ILDAY HAOHUA TU STEPHEN A.BOPPART DMITRY TURCHINOVICH | 2017 | Photonics Research2017，5，6： | 2 |
| 2 | Portrait of the PI3K/AKT-pathway in colorectal cancer显示文摘 | Stine Aske Danielsen Peter Wold Eide Arild Nesbakken Tormod Guren Edward Leithe Ragnhild A. Lothe | 2014 | BBA - Reviews on Cancer2014，，： | 2 |
| 3 | TGF-beta and Smad3 signaling link inflammation to chronic fibrogenesis显示文摘 | Bonniaud P Margetts P J Ask K | 2005 | J Immunol2005，175，8： | 1 |
| 4 | Intermittent catheterization practices following spinal cord injury:A national survey显示文摘 | Woodbury M G Hayes K C Askes H K | 2008 | Canadian J Urology2008，15，3： | 1 |
| 5 | The bleomycinanimal model:a useful tool to investigate treatment optionsfor idiopathic pulmonary fibrosis显示文摘 | Moeller A Ask K Warburton D | 2008 | Int J Biochem CellBiol2008，40，3： | 1 |
| 6 | Representative volume: existence and size determination显示文摘 | Gitman I M Askes H Sluys L J | 2007 | Engineering Fracture Mechan- ics2007，74，： | 1 |
| 7 | Connective tissue growth factor is crucial to inducing a profibrotic environment in “ fibrosis-resistant” BALB/c mouse lungs 显示文摘 | Bonniaud P Martin G Margetts PJ Ask K Robertson J Ganldie J | 2004 | Am J Respir Cell Mol Biol2004，31，5： | 1 |
| 8 | Effect of paclobutrazol on growth and yield of tornato显示文摘 | Hafeezur R M AsK K Khalid M K | 1989 | Pakistan J Agric Res1989，0，1： | 1 |
| 9 | VEGF ameliorates pulmonary hypertension through inhibition of endothelial apoptosis in experimental lung fibrosis in rats显示文摘 | FARKAS L FARKAS D ASK K | 2009 | Journal of Clinical Investigation2009，119，5： | 1 |
| 10 | Retropulsion of intervertebral discs associated with traumatic hyperextension of the cervical spine and absence ofvertebral fracture:an uncommonmechanism of spinal cord injury显示文摘 | HayesKC Askes HK Kakulas BA | 2002 | Spinal Cord2002，40，10： | 1 |
| 11 | Evaluation of potential inhibitors of methanogenesis and methane oxidation in a landfill cover soil显示文摘 | Chan ASK Parkin T B | 2000 | Soil Biology and Biochemistry2000，32，： | 1 |
| 12 | Our current understanding of water in crude oil emulsions: Recent characterization techniques and high pressure performance 显示文摘 | Johan Sjoblom Narve Aske Inge Harald Auflem | 2003 | Advances in Colloid and Interface Science2003，，： | 1 |
| 13 | VEGF ameliorates pulmonary hyper- tension through inhibition of endothe- lial apoptosis in experimental lung fi- brosis in rats显示文摘 | Farkas L Farkas D Ask K | 2009 | J Clin Invest2009，119，5： | 1 |
| 14 | Risk of solid cancers inpatients with rheumatoid arthritis and after treatment with tumor necrosis factor antagonists显示文摘 | Fored CM Baecklund E | 2005 | Ann Rheum Dis2005，64，14： | 1 |
| 15 | Numerical determination of representative volumes for granular materials 显示文摘 | Stroeven M Askes H Sluys L J | 2004 | Computer Methods in Applied Mechanics and Engineering Computational Failure Mechanics2004，193，3032： | 1 |
| 16 | TGF-beta and Smad3 signaling link inflammation to chronicfibrogenesis 显示文摘 | Bonniaud P Margetts P J Ask K | 2005 | J Immunol2005，175，8： | 1 |
| 17 | Inter mittent catheter- iation practi ces following spinal cord injury:anational sur- rey 显示文摘 | Woodbury MG Hayes KC Askes HK | 2008 | Can JUrol2008，15，3： | 1 |
| 18 | Targeting genes for treatment in idiopathic pulmonary fibrosis显示文摘 | K Ask G E M.Martin M.Kolb | | 0，，： | 1 |
| 19 | Determination of saturate,aromatic,resin,and asphaltenic(SARA)components in crude oils by means of infrared and near-infrared spectroscopy显示文摘 | Aske N Kallevik H Sjoblom J | 2001 | Energy Fuels2001，15，： | 1 |
| 20 | The bleomycin animal model:a useful tool to investigate treatment options for idiopathic pulmo- nary fibrosis显示文摘 | Antje Moeller Kjetil Ask David Warburton | 2008 | Int J Biochem Cell Biol2008，40，： | 1 |
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