Hollow-core optical fibers for ultraviolet instrumentation (Conference Presentation)

Dmitry Vorobiev; Brian Fleming; Destry DeWitt; Emily Farr; Thomas Livingston

doi:10.1117/12.3020535

26 August 2024 Hollow-core optical fibers for ultraviolet instrumentation (Conference Presentation)

Dmitry Vorobiev, Brian Fleming, Destry DeWitt, Emily Farr, Thomas Livingston

Proceedings Volume 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI; 131002I (2024) https://doi.org/10.1117/12.3020535
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

Optical fibers are widely used in ground-based astrophysics, especially in the visible and near-infrared regimes. The use of fibers in other spectral regimes (such as the ultraviolet) and in the space environment has been limited due to the high absorption of most glasses in the UV and the radiation-induced degradation of glasses, respectively. Recently, we have demonstrated hollow-core optical fibers that transmit wavelengths as short as approximately 140 nm. Because oxygen and water vapor strongly absorb light with wavelengths shorter than 180 nm, we performed our transmission measurements in a chamber filled with high purity nitrogen. The fibers we measured show high transmission and low bend-induced losses in the 140 - 250 nm regime. Most recently, we have developed a vacuum system, capable of transmission measurements across the full FUV range (100 - 200 nm). Here, we present fiber transmission measurements in the 115 - 250 nm range and introduce some instrument concepts that are made possible by these FUV fibers.

Conference Presentation

Citation Download Citation

Dmitry Vorobiev, Brian Fleming, Destry DeWitt, Emily Farr, and Thomas Livingston "Hollow-core optical fibers for ultraviolet instrumentation (Conference Presentation)", Proc. SPIE 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI, 131002I (26 August 2024); https://doi.org/10.1117/12.3020535

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