Bi-doped glasses for broadband fiber light source

Yasushi Fujimoto

doi:10.1117/12.815328

6 February 2009 Bi-doped glasses for broadband fiber light source

Yasushi Fujimoto

Proceedings Volume 7212, Optical Components and Materials VI; 721202 (2009) https://doi.org/10.1117/12.815328
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

Bi-doped silica glass is a new broadband infrared fluorescence material. We drew optical fibers with the Bi doped silica glass for the fiber core and evaluated the fluorescence spectrum. The FWHM of fluorescence spectrum is measured to be 390 nm. When this broad band spectrum is used as an OCT light source, the expected axial resolution is calculated to be 1.9μm, This is comparable to the axial resolution (Δz~1μm) by Ti:Al₂O₃ system. And we also examined the local structure of Bi ion in Bi-doped silica glass. These are analyzed by ESR, EXAFS, XPS, and ²⁷Al-NMR. According to these results, the structural model of Bi luminescent center is proposed that Bi⁵⁺ ion with 6-fold coordination exists close to Al³⁺ ion with 6-fold coordination.

Citation Download Citation

Yasushi Fujimoto "Bi-doped glasses for broadband fiber light source", Proc. SPIE 7212, Optical Components and Materials VI, 721202 (6 February 2009); https://doi.org/10.1117/12.815328

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