Optical thermometry and broad infrared luminescence in highly sensitized TBO glass

•Er3+/Yb3+ doped/codoped TBO glass has been synthesized using melt-quenching method.•Absorption cross-section of Yb3+ is ∼43 times larger than Er3+ ion at 980 nm.•Enhancement of ∼155 times for green and ∼327 times for red band is achieved.•Codoped TBO glass can be used as a sensing probe.•The codoped glass is suitable for broadband optical amplifier.