Abstract
The proper control of the chromatic dispersion in an optical fiber is one of the most important factors to enhance the nonlinear optical effect. Practically, a near-zero flattened chromatic dispersion is necessary to generate broadband supercontinuum (SC) generation and wideband parametric generation. Recent years, many researchers have demonstrated mid-infrared (MIR) SC and parametric generation in a chalcogenide fiber, because MIR light source has many applications, such as optical coherence tomography and metrology [1]. Chalcogenide glasses are the attractive candidate to obtain the MIR light because of a wide transmission window up to around 18 µm [2] and a high nonlinearity. One of the attractive fiber structures is microstructured optical fibers (MOFs) that can tailor chromatic dispersion in the MIR region. However, MOFs require high structural precision in both transverse and longitudinal directions to achieve a desired chromatic dispersion profiles. This will make it more difficult than all-solid fibres to fabricate desired fibers. Another advantage of all solid fibers is an availability of a combination of fiber materials. In this study, to gain the flexibility of structure design, we use chalcogenide double clad fiber (Ch-DCF) which is made of As2Se3, AsSe2, and As2S5 glasses.
© 2017 IEEE
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