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Title: Laser gain media fabricated via direct ink writing (DIW) and ceramic processing

Patent ·
OSTI ID:1771653

A transparent ceramic optic includes: a lasing region comprising at least one lasing species dopant; and a transparent region transparent to light generated by the lasing species. At least the transparent region is doped with at least one other dopant species such that the lasing region and the transparent region are characterized by a difference in refractive index between the two regions in an amount of about 1.0×10−4 or less. Inventive formulations of inks suitable for fabricating transparent ceramic optics having desirable compositional characteristics such as concentration gradients in desired spatial arrangements, e.g. using additive manufacturing techniques such as direct ink writing and/or extrusion freeform fabrication are also disclosed, along with suitable techniques for forming the transparent ceramic optics from such inks.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
10,840,668
Application Number:
16/306,865
OSTI ID:
1771653
Resource Relation:
Patent File Date: 06/16/2017
Country of Publication:
United States
Language:
English

References (19)

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Thermal analysis on grad-doped active-mirror Yb:YAG ceramic lasers journal November 2015
Sol-Gel Inks patent-application October 2008
Active mixing of complex fluids at the microscale journal September 2015
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Expanded phase stability of Gd-based garnet transparent ceramic scintillators journal September 2014
Low Viscosity Copper Precursor Compositions and Methods for the Deposition of Conductive Electronic Features patent-application September 2003
Ink Composition for Optoelectronic Device patent-application February 2011
Fabrication and Optical Properties of High-Performance Polycrystalline Nd:YAG Ceramics for Solid-State Lasers journal April 1995
Photocurable Liquid Core-Fugitive Shell Printing of Optical Waveguides journal October 2011
Functionally Doped Polycrystalline Ceramic Laser Materials patent-application May 2011
Process for forming a graded index optical material and structures formed thereby patent October 1985
Coaxial additive manufacture of biomaterial composite scaffolds for tissue engineering journal March 2014
Method of fabricating gradient index optical films patent March 1991

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