Radiation-balanced lasers: history, status, potential

G Nemova - Applied Sciences, 2021 - mdpi.com
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 …

[HTML][HTML] Optically managing thermal energy in high-power yb-doped fiber lasers and amplifiers: a brief review

N Yu, J Ballato, MJF Digonnet… - Current optics and …, 2022 - coppjournal.org
Fiber lasers have made remarkable progress over the past three decades, and they now
serve farreaching applications and have even become indispensable in many technology …

Cladding-pumped Raman fiber laser with 0.78% quantum defect enabled by phosphorus-doped fiber

X Ma, J Xu, J Ye, Y Zhang, L Huang, T Yao… - High Power Laser …, 2022 - cambridge.org
The quantum defect (QD) is an important issue that demands prompt attention in high-power
fiber lasers. A large QD may aggravate the thermal load in the laser, which would impact the …

Potential of ytterbium doped silica glass for solid-state optical refrigeration to below 200 K

B Topper, A Neumann, AR Albrecht, AS Flores… - Optics …, 2023 - opg.optica.org
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 …

High-power, high-efficiency single-frequency DBR fiber laser at 1064 nm based on Yb3+-doped silica fiber

Y Li, X Deng, S Fu, Q Sheng, C Shi, J Zhang, L Zhang… - Optics Letters, 2023 - opg.optica.org
A high-power, high-efficiency single-frequency fiber laser at 1064? nm was demonstrated
based on a distributed Bragg reflector (DBR) all-silica-fiber configuration. A single-frequency …

Laser cooling ytterbium doped silica by 67 K from ambient temperature

B Topper, S Kuhn, A Neumann, AR Albrecht… - Optics …, 2024 - opg.optica.org
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 …

Laser cooling of a Yb doped silica fiber by 18 Kelvin from room temperature

B Topper, M Peysokhan, AR Albrecht, AS Flores… - Optics Letters, 2021 - opg.optica.org
An ytterbium doped silica optical fiber with a core diameter of 900µm has been cooled by
18.4 K below ambient temperature by pumping with 20 W of 1035 nm light in vacuum. In air …

The uniqueness of glass for passive thermal management for optical fibers

J Ballato, PD Dragic - International Journal of Applied Glass …, 2022 - Wiley Online Library
Optical fiber‐based lasers and amplifiers are ubiquitous tools across many practical
applications including communications, metrology, sensing, manufacturing, machining, and …

Pure silica fiber Raman gain enabled high-power low-quantum defect fiber laser

X Ma, Y Zhang, J Ye, J Xu, J Leng, P Zhou - Optics & Laser Technology, 2023 - Elsevier
Reducing the quantum defect (QD) is a promising solution to mitigate the thermal load and
lower system noise. Besides, owing to many advantages such as wavelength agility and non …

FDTD modeling of excitation-balanced, mJ-level pulse amplifiers in Yb-doped double-clad optical fibers

N Yu, M Xiong, PD Dragic - Optics Express, 2023 - opg.optica.org
A finite-difference time-domain (FDTD) simulation of Yb-doped cladding-pumped, mJ-level,
excitation-balanced fiber pulse amplifiers (EBFAs) is presented. In EBFAs, two pumps, one …