超连续谱
材料科学
锗
石英纤维
包层(金属加工)
镧
光纤
硫系化合物
零色散波长
光子晶体光纤
光电子学
波长
光学
纤维
光纤激光器
复合材料
硅
塑料光纤
无机化学
光纤传感器
化学
物理
作者
Jens Kobelke,Kay Schuster,D. Litzkendorf,Anka Schwuchow,J. Kirchhof,Vincent Tombelaine,Hartmut Bartelt,Philippe Leproux,Vincent Couderc,Alexis Labruyère,Raphaël Jamier
标识
DOI:10.1016/j.optmat.2010.02.019
摘要
Modified core glass materials in silica-clad microstructured fibers (MOFs) promise efficient conversion of non-linear processes, e.g. for supercontinuum (SC) generation. We used extremely highly germanium-doped silica (max. 36 mol% GeO2) and lanthanum aluminum silicate glasses with high lanthanum oxide concentration (max. 10 mol% La2O3) as core materials. The microstructured optical fibers (Ge-MOFs, La-MOFs) were prepared in five air ring architecture by a stack-and-draw technique using silica for the cladding region. The MOFs show loss minima of about 0.05 dB m−1 (Ge-MOF) and 1.3 dB m−1 (La-MOF) at a wavelength of 1.064 μm. Such Ge-MOFs and La-MOFs are compatible with conventional silica fibers giving low loss splices with standard single mode fibers. The non-linearity of the La-MOF is approximately two times higher than that of the Ge-MOF, but shows a significantly higher spectral loss. Ge-MOF and La-MOF can both produce similar ultra-broad band supercontinuum spectra from VIS (540 nm and 500 nm) to IR range (2400 nm and 2220 nm) by being pumped with a passively Q-switched Nd:YAG microchip laser.
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