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Enhancement of wavefront characteristics in fibers by Anderson localized modes (Conference Presentation)
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Paper Abstract

Transverse Anderson Localizing Optical Fiber (TALOF) provides a novel waveguiding mechanism. The entire disordered transverse structure of the fiber supports compactly located Anderson localized modes. Each transversely localized mode of the fiber forms a guiding channel. The strong disorder-induced transverse confinement due to the Anderson localization suffices for single-mode light transmission. In this work, we analyze the beam quality of highly localized modes in a glass-TALOF. We use the M^2 factor as a broadly accepted metric in optical fiber community for the beam quality evaluation. A numerical analysis of the M^2 values on a large ensemble of calculated modes in a glass-TALOF hints to the presence of high-quality modes at various locations across the transverse profile of the fiber. Our experimental results on the statistics of M^2 values in glass-TALOF supports the numerical analysis where it is shown that high-quality modes can be easily excited across the entire transverse profile of the fiber. Specifically, we present M^2 values of 30 localized modes and show how the M^2 ~ 1 modes are dominant. When the gain is added to TALOF, it can support localized lasing modes. Recently, we have demonstrated a directional and spectrally stable random laser mediated by a glass-TALOF; localization of the lasing modes reduces mode competition and helps with the spectral stability. The disorder-induced high-quality wavefronts in TALOF in combination with the aforementioned advances in lasing mediated by TALOF can foster a new class of single-mode optical fiber laser.

Paper Details

Date Published: 8 March 2019
Proc. SPIE 10935, Complex Light and Optical Forces XIII, 109350G (8 March 2019); doi: 10.1117/12.2510278
Show Author Affiliations
Behnam Abaie, The Univ. of New Mexico (United States)
Mostafa Peysokhan, The Univ. of New Mexico (United States)
Jian Zhao, Univ. of Central Florida (United States)
Jose E. Antonio-Lopez, Univ. of Central Florida (United States)
Rodrigo Amezcua-Correa, Univ. of Central Florida (United States)
Axel Schülzgen, Univ. of Central Florida (United States)
Arash Mafi, The Univ. of New Mexico (United States)

Published in SPIE Proceedings Vol. 10935:
Complex Light and Optical Forces XIII
Jesper Glückstad; David L. Andrews; Enrique J. Galvez, Editor(s)

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