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| Naji, M. |
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| Azevedo, Nuno Monteiro |
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Knight, Jonathan C.
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Guidance of ultraviolet light down to 190 nm in a hollow-core optical fibrecitations
- 2016Cavity-based mid-IR fiber gas laser pumped by a diode lasercitations
- 2014Out of the blue and into the black - silica fibers for the mid-IR
- 2014Hollow antiresonant fibers with low bending losscitations
- 2014Hollow antiresonant fibers with reduced attenuationcitations
- 2013Flexible delivery of Er:YAG radiation at 2.94 µm with negative curvature silica glass fiberscitations
- 2013Flexible delivery of Er:YAG radiation at 2.94 μm with negative curvature silica glass fibers: A new solution for minimally invasive surgical procedurescitations
- 2009All-fiber devices based on photonic crystal fibers with integrated electrodescitations
- 2008Over 4000 nm bandwidth of mid-IR supercontinuum generation in sub-centimeter segments of highly nonlinear tellurite PCFscitations
- 2007Characterization of frequency noise on a broadband infrared frequency comb using optical heterodyne techniques
- 2007IR supercontinuum in compact tellurite PCFscitations
- 2006Silica-clad neodymium-doped lanthanum phosphate fibers and fiber laserscitations
- 2004Delivery of high energy light through pbg fiber for laser machining
- 2002Microstructured glass adds new dimension to optical fibers
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article
Over 4000 nm bandwidth of mid-IR supercontinuum generation in sub-centimeter segments of highly nonlinear tellurite PCFs
Abstract
We report broad bandwidth, mid-IR supercontinuum generation using a sub-cm (8 mm) length of highly nonlinear tellurite microstructured photonic crystal fiber (PCF). We pump the fiber at telecommunication wavelengths by using 1550 nm, 100 fs pulses of energy E=1.9 nJ. When coupled in the PCF, these pulses result in a supercontinuum (SC) bandwidth of 4080 nm extending from 789 to 4870 nm measured at 20 dBm below the peak spectral power. This bandwidth is comparable or in excess of previously reported spectra for other nonlinear glass fiber formulations despite the significantly shorter fiber length. In addition, besides offering a convenient pump wavelength, short fiber lengths enable smoother SC spectra, lower dispersion, and reduced material absorption at longer wavelengths making the use of this PCF particularly interesting.