It is hard to overstate the utility of lasers in modern technology. Optical-fiber-based lasers are
of particular value thanks to their combination of small form factors, afforded by the coilability …

The review of history and progress on radiation-balanced (athermal) lasers is presented with
a special focus on rare earth (RE)-doped lasers. In the majority of lasers, heat generated …

For the first time, to the best of our knowledge, laser cooling is reported in a silica optical
fiber. The fiber has a 21-µm diameter core doped with 2.06 wt.% \rmYb^3+ Yb^ 3+ and co …

In optically pumped lasers, heat generated by the quantum defect causes detrimental
fluctuations in the output mode, frequency, and power. Common heat-mitigation techniques …

We report what we believe to be the first radiation-balanced fiber amplifier—a device that
provides optical gain while experiencing no temperature rise. The gain medium is a silica …

Laser cooling in silica has recently been demonstrated, but there is still a lack of
understanding on how fiber composition, core size, and OH^− contamination influence …

Glass optical fibers have reached a scale and commercial maturity that few, if any, other
material and form can claim. Furthermore, optical fibers not only enable a remarkably broad …

Laser cooling of a 5? cm long, 1? mm diameter ytterbium doped (6.56× 10^ 25 ions/m^ 3)
silica rod by 67? K from room temperature was achieved. For the pump source, a 100? W …

Recent advances in power scaling of fiber lasers are hindered by the thermal issues, which
deteriorate the beam quality. Anti-Stokes fluorescence cooling has been suggested as a …

Optical fiber‐based lasers and amplifiers are ubiquitous tools across many practical
applications including communications, metrology, sensing, manufacturing, machining, and …