Influence of phosphorous precursors on spectroscopic properties of Er3+-activated SiO2-HfO2-P2O5 planar waveguides

5th Young Researcher Meeting, Trieste 2014

Vasilchenko, I.^1,2 ; Carpentiero, A.^1 ; Chiappini, A.^1 ; Chiasera, A.^1 ; Vaccari, A.^3 ; Lukowiak, A.^4 ; Righini, G.C.^5,6 ; Vereshagin, V.^7 ; Ferrari, M.^1,6

IFN-CNR CSMFO Lab., Via alla Cascata 56/C Povo, Trento

38123, Italy^1

Dipartimento di Fisica, Università di Trento, via Sommarive 14, Povo Trento

38123, Italy^2

FBK-ARES Unit, Via alla Cascata 56/C, Trento Povo

38123, Italy^3

Institute of Low Temperature and Structure Research, PAS, Okolna 2, Wroclaw

50-422, Poland^4

IFAC-CNR, MiPLab., Sesto Fiorentino

50019, Italy^5

Museo Storico della Fisica e Centro di Studi e Ricerche Enrico Fermi, Piazza del Viminale 1, Rome

00184, Italy^6

Institute of High Technology Physics, National Research Tomsk Polytechnic University, 30 Lenin Avenue, Tomsk

634050, Russia^7

关键词: Attenuation coefficient;    Diagnostic techniques;    Glass planar waveguides;    Photoluminescence measurements;    Prism coupling technique;    Propagating mode;    Spectroscopic property;    Transmission measurements;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/566/1/012018/pdf
DOI  :  10.1088/1742-6596/566/1/012018

来源: IOP

【 摘 要 】

(70-x)SiO2-30HfO2-xP2O5(x= 5, 10 mol %) glass planar waveguides activated by 0.5 mol% Er3+ ions were prepared by sol-gel route. Several phosphorous precursors have been investigated for the synthesis of a dielectric stable sol useful for the realization of planar waveguides. The waveguides were investigated by different diagnostic techniques. The optical properties such as refractive index, thickness, number of propagating modes and attenuation coefficient were measured at 632.8 and 543.5 nm by prism coupling technique. Transmission measurements were carried out in order to assess the transparency of the deposited films. Photoluminescence measurements and lifetime decay curves of the Er3+ transition4I13/21 →4I15/21) were performed in order to investigate the role of P2O5.