Research and Development of High Energy 2 - Micron Lasers Based on TM: Doped Ceramic Laser Gain Media and TM: Doped Optical Fibers

2016 ◽  
Author(s):  
Robert L. Byer ◽  
Alireza Marandi ◽  
Roger Route
Keyword(s):  
Research And Development ◽  
Optical Fibers ◽  
High Energy ◽  
Laser Gain ◽  
Ceramic Laser ◽  
Gain Media

3D printed ceramic laser gain media

2021 ◽  
Author(s):  
Zachary M. Seeley ◽  
Nerine Cherepy ◽  
Thomas Rudzik ◽  
Ian Phillips ◽  
Alexander Drobshoff ◽  
...  
Keyword(s):  
Laser Gain ◽  
3D Printed ◽  
Ceramic Laser ◽  
Gain Media

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.

State-of-the-art Laser Ceramics for the Next-generation Solid-state Laser

2021 ◽  
Vol 30 (10) ◽  
pp. 22-27
Author(s):  
Ho Jin MA ◽  
Ha-Neul KIM
Keyword(s):  
Solid State ◽  
Mechanical Characteristics ◽  
High Energy ◽  
Solid State Lasers ◽  
Laser Ceramics ◽  
Host Materials ◽  
Laser Systems ◽  
Energy Laser ◽  
High Energy Laser ◽  
Gain Media

Solid-state lasers have aroused many researchers’ interests for a variety of applications in military and industrial fields. Because of the preference for increased output power, Nd:YAG single crystals, which are the most widely used gain media, should be replaced by other more suitable candidates. Polycrystalline sesquioxide ceramics show great potential for use as gain media because their thermal and mechanical characteristics are suitable for use with high-energy laser systems. Recently, novel concepts of the gain media were also introduced. Herein, while briefly looking back on the progress of polycrystalline laser ceramics, we will discuss new interests in host materials and systems.

Co-casting and optical characteristics of transparent segmented composite Er:YAG laser ceramics

2010 ◽  
Vol 25 (3) ◽  
pp. 476-483 ◽  
Author(s):  
Elizabeth R. Kupp ◽  
Gary L. Messing ◽  
Julie M. Anderson ◽  
Venkatraman Gopalan ◽  
John Q. Dumm ◽  
...  
Keyword(s):  
Er:Yag Laser ◽  
Casting Process ◽  
Composite Ceramic ◽  
Laser Operation ◽  
Lasing Wavelength ◽  
Laser Gain ◽  
Composite Rod ◽  
Ceramic Laser ◽  
Transparent Composite ◽  
First Time

A novel colloidal co-casting process was developed to fabricate laser quality, multisegment composite ceramic laser gain materials. The approach was demonstrated for a three segment transparent composite rod 62 mm long by 3 mm diameter consisting of undoped yttrium aluminus garnet (YAG), 0.25% Er:YAG, and 0.5% Er:YAG. The Er concentration profile in the composite has steep, controllable gradients at the segment interfaces, while maintaining constant dopant concentrations within each segment. The composite rod has 84% transmittance at 1645 nm (the lasing wavelength) with a scatter loss of 0.4% cm−1. Laser operation of such a composite Er:YAG ceramic rod was demonstrated for the first time, with nearly equivalent lasing behavior to an Er:YAG single crystal rod.

scholarly journals Laser testing of anti-reflection micro-structures fabricated in ZnSe and chromium-ion doped ZnSe laser gain media

2017 ◽  
Vol 7 (9) ◽  
pp. 3377 ◽  
Author(s):  
Douglas Hobbs ◽  
Bruce Macleod ◽  
Ernest Sabatino ◽  
Sergey Mirov ◽  
Dmitri Martyshkin ◽  
...  
Keyword(s):  
Chromium Ion ◽  
Laser Gain ◽  
Micro Structures ◽  
Gain Media
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