Laser‐driven projection display puts forward urgent demand for color converter materials to
achieve wide‐color‐gamut and high‐quality image presentation. In this study, a hierarchical …

Especially for displays, visible-wavelength lasers are in high demand for a wide range of
applications. Active research and development have been devoted to laser-based displays …

Green semiconductor lasers are still undeveloped, so high-power green lasers have heavily
relied on nonlinear frequency conversion of near-infrared lasers, precluding compact and …

Abstract Six 1.0 mol% Er 2 O 3-doped lead fluoride zinc borotellurite glasses comprising
different alkali metal oxides and fluorides (K 2 O, Na 2 O, Li 2 O, KF, NaF, and LiF) have …

It has been a big challenge in decades for Ho3+-doped fiber laser to produce high emission
power in deep-red due to its intrinsic long carrier lifetime in 5I7 energy level. Here, we …

Using multilayer structures of upconversion nanophosphors is widely considered an
effective and necessary strategy to achieve efficient luminescence. However, the synthesis …

We report, for the first time to our knowledge, a compact continuous-wave all-fiber cyan
laser. The all-fiber cavity consists of a 443-nm fiber-pigtail laser diode as pump source, a 4.5 …

Ultrafast lasers in the true-green spectrum, which are scarce due to the “green gap” in
semiconductor materials, are in high demand for the surging field of biomedical photonics …

To date, Ho 3+-doped fluoride fibers have been investigated as a viable route for deep-red
fiber lasers. However, high output performance deep-red fiber lasers around 750 nm have …

Direct generation of visible frequency from a compact all-fiber laser while preserving high
output characteristics has been a subject of research in laser technology. We investigated …