Polymer-based S-band waveguide amplifier using NaYF₄:Yb,Tm-PMMA nanocomposite as gain medium

2021 ◽  
Author(s):  
Yuewu Fu ◽  
Yu Yang ◽  
Tonghe Sun ◽  
Ying Tang ◽  
Jun Li ◽  
...  
Keyword(s):  
Gain Medium

Apparent Superluminal Propagation of a Laser Pulse in a Gain Medium

2001 ◽  
Author(s):  
Phillip Sprangle ◽  
Joseph Penano ◽  
Bahman Hafizi
Keyword(s):  
Laser Pulse ◽  
Gain Medium ◽  
Superluminal Propagation

GeSn Lasers with Uniaxial Tensile Strain in the Gain Medium

2019 ◽  
Author(s):  
Mathieu Bertrand ◽  
Francesco Armand Pilon ◽  
Vincent Reboud ◽  
Hans Sigg ◽  
Quang-Minh Thai ◽  
...  
Keyword(s):  
Tensile Strain ◽  
Gain Medium ◽  
Uniaxial Tensile

scholarly journals Amplification by stimulated emission of nitrogen-vacancy centres in a diamond-loaded fibre cavity

Nanophotonics ◽  
2020 ◽  
Vol 9 (15) ◽  
pp. 4505-4518
Author(s):  
Sarath Raman Nair ◽  
Lachlan J. Rogers ◽  
Xavier Vidal ◽  
Reece P. Roberts ◽  
Hiroshi Abe ◽  
...  
Keyword(s):  
Room Temperature ◽  
Gain Medium ◽  
Stimulated Emission ◽  
Nitrogen Vacancy ◽  
Qualitative Model ◽  
Seed Laser ◽  
Laser Threshold ◽  
Cavity System ◽  
Emission Changes ◽  
532 Nm

AbstractLaser threshold magnetometry using the negatively charged nitrogen-vacancy (NV−) centre in diamond as a gain medium has been proposed as a technique to dramatically enhance the sensitivity of room-temperature magnetometry. We experimentally explore a diamond-loaded open tunable fibre-cavity system as a potential contender for the realisation of lasing with NV− centres. We observe amplification of the transmission of a cavity-resonant seed laser at 721 nm when the cavity is pumped at 532 nm and attribute this to stimulated emission. Changes in the intensity of spontaneously emitted photons accompany the amplification, and a qualitative model including stimulated emission and ionisation dynamics of the NV− centre captures the dynamics in the experiment very well. These results highlight important considerations in the realisation of an NV− laser in diamond.

scholarly journals Modeling and Measurement of Thermal Effect in a Flashlamp-Pumped Direct-Liquid-Cooled Split-Disk Nd:LuAG Ceramic Laser Amplifier

Photonics ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 97
Author(s):  
Shengzhe Ji ◽  
Wenfa Huang ◽  
Tao Feng ◽  
Long Pan ◽  
Jiangfeng Wang ◽  
...  
Keyword(s):  
Thermal Stress ◽  
Thermal Effects ◽  
Thermal Deformation ◽  
High Energy ◽  
Gain Medium ◽  
Wavefront Aberration ◽  
Experimental Measurements ◽  
Laser Amplifier ◽  
Design And Optimization ◽  
Ceramic Laser

In this paper, a model to predict the thermal effects in a flashlamp-pumped direct-liquid-cooled split-disk Nd:LuAG ceramic laser amplifier has been presented. In addition to pumping distribution, the model calculates thermal-induced wavefront aberration as a function of temperature, thermal stress and thermal deformation in the gain medium. Experimental measurements are carried out to assess the accuracy of the model. We expect that this study will assist in the design and optimization of high-energy lasers operated at repetition rate.

Measurement of thermal effects in solid-state laser gain medium by digital holography

2014 ◽  
Author(s):  
Xiaoyuan Peng ◽  
Yang Yu ◽  
Zhaomin Wang ◽  
Weijuan Qu ◽  
Chee Yuen Cheng ◽  
...  
Keyword(s):  
Solid State ◽  
Thermal Effects ◽  
Digital Holography ◽  
Gain Medium ◽  
Solid State Laser ◽  
State Laser ◽  
Laser Gain

Er3+–Yb3+ codoped phosphate glasses used for an efficient 1.5μm broadband gain medium

2012 ◽  
Vol 34 (8) ◽  
pp. 1235-1240 ◽  
Author(s):  
F. Rivera-López ◽  
P. Babu ◽  
L. Jyothi ◽  
U.R. Rodríguez-Mendoza ◽  
I.R. Martín ◽  
...  
Keyword(s):  
Gain Medium ◽  
Phosphate Glasses ◽  
Broadband Gain
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