Abstract
In this work, the glass network has been tailored by introducing the modifier WO3 when a Ho3+/Yb3+ co-doped bismuth-tellurite glass composition was designed. The physical, absorption, emission, structure, and gain characteristics of the glasses with the different contents of WO3 were investigated comprehensively based on various tests and analytical methods such as absorption spectra, fluorescence spectra, Raman spectra, and J-O theory. The results show that both the optical band gap and the bridge oxygen content are enhanced remarkably while the substitution of TeO2 by WO3, accelerating the transition from [TeO3] to [TeO4] units. Simultaneously, the value of Ω6 reached the maximum of 2.26×10-20 cm2 when the WO3 is equal to 10 mol%, indicating that the Stark splitting of Ho3+: 5I7 energy level is the weakest. The optimal FWHM and the gain coefficient are 143.3 nm and 2.22 cm-1, respectively. Furthermore, a blue shift of the central wavelength in absorption and emission peaks can be observed at the 2 μm band. As mentioned above, the bismuth-tellurite glass prepared is an ideal gain material that can realize a wider spectra span.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
