17 May 2018 Fabrication by rf-sputtering and assessment of dielectric Er3+ doped monolithic 1-D microcavity for coherent emission at 1.5 μm
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Abstract
All Er3+ doped dielectric 1-D microcavity are fabricated by RF sputtering technique. The microcavity is composed of half wave Er3+ doped SiO2 active layer inserted, between two Bragg reflectors consisting of seven pairs of SiO2/TiO2 layers also doped with Er3+ ions. The morphology of the structure is inspected with scanning electron microscopy. Transmission measurements show the third and first order cavity resonance at 530 nm and 1535 nm, respectively. The photoluminescence measurements were obtained by optically exciting at the third order cavity resonance using 514.5 nm Ar+ laser with an excitation angle of 30°. The Full Width at Half Maximum of the emission peak at 1535 nm decrease with the pump power until the spectral resolution of the detection system of 2.3 nm. Moreover, the emission intensity presents a non-linear behavior with the pump power and a threshold at about 4 μW.
Conference Presentation
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Alessandro Chiasera, Alessandro Chiasera, Francesco Scotognella, Francesco Scotognella, Yann Boucher, Yann Boucher, Anna Lukowiak, Anna Lukowiak, Davor Ristić, Davor Ristić, Giorgio Speranza, Giorgio Speranza, Cesare Meroni, Cesare Meroni, Stefano Varas, Stefano Varas, Lidia Zur, Lidia Zur, Mile Ivanda, Mile Ivanda, Stefano Taccheo, Stefano Taccheo, Roberta Ramponi, Roberta Ramponi, Giancarlo C. Righini, Giancarlo C. Righini, Maurizio Ferrari, Maurizio Ferrari, } "Fabrication by rf-sputtering and assessment of dielectric Er3+ doped monolithic 1-D microcavity for coherent emission at 1.5 μm", Proc. SPIE 10683, Fiber Lasers and Glass Photonics: Materials through Applications, 106830Q (17 May 2018); doi: 10.1117/12.2306413; https://doi.org/10.1117/12.2306413
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