The spectral UV properties of silica-based multi-mode and few-modes fibers will be shown using pulsed 355 nm lasers with pulse density levels close to damage threshold. A new experimental set-up with spectral analyses and parallel damaging will be introduced and discussed. Using pulsed UV-laser with good beam quality, low-mode fibers can be studied in respect to spectral losses in a wavelength region significantly below the wavelength of operation.
Philipp Raithel, Karl-Friedrich Klein, Mathias Belz, and Georg Hillrichs, "Transmission of few-mode fibers at 355 nm using pulsed Nd-YAG laser
," Proc. SPIE 10681, Micro-Structured and Specialty Optical Fibres V, 1068103 (Presented at SPIE Photonics Europe: April 25, 2018; Published: 9 May 2018); https://doi.org/10.1117/12.2302953.
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