Large mode area fibers for single-mode transmission near 2μm

Piotr Miluski; Marcin Kochanowicz; Jacek Zmojda; Agata Baranowska; Magdalena Leśniak; Dominik Dorosz; Krzysztof Markowski; Jan Dorosz

doi:10.1117/12.2621971

25 May 2022 Large mode area fibers for single-mode transmission near 2μm

Piotr Miluski, Marcin Kochanowicz, Jacek Zmojda, Agata Baranowska, Magdalena Leśniak, Dominik Dorosz, Krzysztof Markowski, Jan Dorosz

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Proceedings Volume 12142, Fiber Lasers and Glass Photonics: Materials through Applications III; 121420M (2022) https://doi.org/10.1117/12.2621971
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

The Large Mode Area (LMA) fibers are attractive in the field of new components in optical fiber technology in the field of sensing and novel radiation sources. The numerical analysis of multi-ring (multi trench) fiber construction is investigated for eye-safe transmission spectral range (1400-2100 nm). The optical fiber refractive profile construction of ∆n (0.001- 0.004) for different radial step ∆r (1.0-1.6 µm) is used for the investigation of linearly polarized modes (LP01 and LP11) propagation. The maximum mode field diameter (MFD) of LP01 was calculated. The results confirm the LMA propagation possibility in the presented fiber construction. The single-mode guiding was confirmed for different ∆n and ∆r parameters in the investigated spectral range. The cutoff wavelength <1400 nm and single-mode operation are possible for ∆n=0.001 and ∆r=1 µm.

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Piotr Miluski, Marcin Kochanowicz, Jacek Zmojda, Agata Baranowska, Magdalena Leśniak, Dominik Dorosz, Krzysztof Markowski, and Jan Dorosz "Large mode area fibers for single-mode transmission near 2μm", Proc. SPIE 12142, Fiber Lasers and Glass Photonics: Materials through Applications III, 121420M (25 May 2022); https://doi.org/10.1117/12.2621971

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KEYWORDS

Optical fibers

Refractive index

Silica

Wave propagation

Fiber lasers

Signal attenuation

Laser damage threshold

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