Tapered Chalcogenide-Tellurite Hybrid Microstructured Fiber For Mid-Infrared Supercontinuum Generation

Keywords

dispersion decreasing; microstructured fiber; mid-infrared supercontinuum; soft-glass

Abstract

Fibers exhibiting flattened and decreasing dispersion are important in nonlinear applications. Such fibers are difficult to design, particularly in soft glass. In this work, we develop a preliminary design of a highly nonlinear tapered hybrid microstructured optical fiber (TH-MOF) with chalcogenide glass core and tellurite glass microstructure cladding. We then numerically studied its dispersion, loss, and nonlinearity-related optical properties under fundamental mode systematically using the infinitesimal method. The designed TH-MOF exhibits low chromatic dispersion that is similar to a convex function with two zero-dispersion wavelengths and decreases with fiber length from 2 to 5 m band. The potential use of the TH-MOF in nonlinear applications is demonstrated numerically by a supercontinuum spectrum of 20 dB bandwidth covering 1.96-4.76 m generated in 2-cm-long TH-MOF using near 3.25-m fs-laser pump.

Publication Date

5-21-2015

Publication Title

Journal of Modern Optics

Volume

62

Issue

9

Number of Pages

729-737

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/09500340.2015.1004376

Socpus ID

84927695542 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84927695542

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