Chromium doped nano-phase separated yttria-alumina-silica glass based optical fiber preform: fabrication and characterization

Debjit Dutta; Anirban Dhar; Shyamal Das; Sandip Bysakh; Alexandar Kir’yanov; Mukul Chandra Paul

doi:10.1117/12.2181613

15 June 2015 Chromium doped nano-phase separated yttria-alumina-silica glass based optical fiber preform: fabrication and characterization

Debjit Dutta, Anirban Dhar, Shyamal Das, Sandip Bysakh, Alexandar Kir’yanov, Mukul Chandra Paul

Author Affiliations +

Proceedings Volume 9654, International Conference on Optics and Photonics 2015; 96541J (2015) https://doi.org/10.1117/12.2181613
Event: International Conference on Optics and Photonics 2015, 2015, Kolkata, India

Abstract

Transition metal (TM) doping in silica core optical fiber is one of the research area which has been studied for long time and Chromium (Cr) doping specially attracts a lot of research interest due to their broad emission band covering U, C and L band with many potential application such as saturable absorber or broadband amplifier etc. This paper present fabrication of Cr doped nano-phase separated silica fiber within yttria-alumina-silica core glass through conventional Modified Chemical Vapor Deposition (MCVD) process coupled with solution doping technique along with different material and optical characterization. For the first time scanning electron microscope (SEM) / energy dispersive X-ray (EDX) analysis of porous soot sample and final preform has been utilized to investigate incorporation mechanism of Crions with special emphasis on Cr-species evaporation at different stages of fabrication. We also report that optimized annealing condition of our fabricated preform exhibited enhanced fluorescence emission and a broad band within 550- 800 nm wavelength region under pumping at 532 nm wavelength due to nano-phase restructuration.

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Debjit Dutta, Anirban Dhar, Shyamal Das, Sandip Bysakh, Alexandar Kir’yanov, and Mukul Chandra Paul "Chromium doped nano-phase separated yttria-alumina-silica glass based optical fiber preform: fabrication and characterization", Proc. SPIE 9654, International Conference on Optics and Photonics 2015, 96541J (15 June 2015); https://doi.org/10.1117/12.2181613

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