Supercontinuum generation from zinc borate glasses: bandgap versus rare-earth doping

• DOI: 10.1364/ol.418594
• Publication Date: 2021-02-05T16:00:14Z
• Authors: M. M. Neethish; V. V. Ravi Kanth ...; Samuel Anurag Nalam; S. Sree Harsha; P. Prem Kiran
• Keywords: 0103 physical sciences; Supercontinuum generation, Nonlinear optics, Glass; 01 natural sciences

We report an enhanced supercontinuum generation (SCG) from a rare-earth ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:msup> <mml:mi mathvariant="normal">P</mml:mi> mathvariant="normal">r</mml:mi> </mml:mrow> <mml:mn>3</mml:mn> <mml:mo>+</mml:mo> </mml:msup> </mml:math> ) doped low bandgap zinc borate glass when excited with 60 fs pulses Ti-sapphire laser. The emission associated the absorption bands due to doping (around 420–500 and 580–600 nm) is observed assist SCG.