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 …

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 …

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

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 …

We demonstrate laser induced cooling in ytterbium doped silica (SiO2) glass with alumina,
yttria co-do** (GAYY-Aluminum: Yttrium: Ytterbium Glass) fabricated using the modified …

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 …

We report on the optical refrigeration of ytterbium doped silica glass by> 40 K starting at
room temperature, which represents more than a two-fold improvement over the previous …

Ytterbium‐doped lanthanum titanate glasses were prepared by levitation melting for the
detailed characterization of the Yb 3+ \rmYb^3+ spectroscopic properties in the rare‐earth …