Mid-infrared chalcogenide polarization-maintaining single-mode fiber

Francois Chenard; Oseas Alvarez; Erik Schartner; Heike Ebendorff-Heidepriem

doi:10.1117/12.2607497

4 March 2022 Mid-infrared chalcogenide polarization-maintaining single-mode fiber

Francois Chenard, Oseas Alvarez, Erik Schartner, Heike Ebendorff-Heidepriem

Proceedings Volume 11997, Optical Components and Materials XIX; 119970H (2022) https://doi.org/10.1117/12.2607497
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

An innovative mid-infrared polarization-maintaining photonic crystal fiber (PM-PCF) with an asymmetric orthogonal pattern of longitudinal holes having different periods and diameters is presented. The PM-PCF is designed and made of chalcogenide glass to offer endlessly single mode in the mid-infrared (2-6μm) with good beam quality (M²~1). Most importantly, the guided mode is circular to improve the coupling efficiency and to perfectly collimate the output beam with a single lens. The large mode area enables the transmission of high-power polarized infrared laser (<10W CW). Also, the new PM-PCF has high birefringence (~10^-4), low propagation losses (0.2dB/m), and low insertion loss (<0.1dB). The PM-PCF preform is made by extrusion and is used to draw the mid-infrared PM-PCF. Simulation and experimental results on the mid-infrared PM-PCF are presented.

Conference Presentation

Citation Download Citation

Francois Chenard, Oseas Alvarez, Erik Schartner, and Heike Ebendorff-Heidepriem "Mid-infrared chalcogenide polarization-maintaining single-mode fiber", Proc. SPIE 11997, Optical Components and Materials XIX, 119970H (4 March 2022); https://doi.org/10.1117/12.2607497

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