Diffractive laser beam homogenizer including a photo-active material and method of fabricating the same

Bayramian, Andy J; Ebbers, Christopher A; Chen, Diana C

Title: Diffractive laser beam homogenizer including a photo-active material and method of fabricating the same

Patent · Tue May 20 00:00:00 EDT 2014

OSTI ID:1132263

Bayramian, Andy J; Ebbers, Christopher A; Chen, Diana C

A method of manufacturing a plurality of diffractive optical elements includes providing a partially transmissive slide, providing a first piece of PTR glass, and directing first UV radiation through the partially transmissive slide to impinge on the first piece of PTR glass. The method also includes exposing predetermined portions of the first piece of PTR glass to the first UV radiation and thermally treating the exposed first piece of PTR glass. The method further includes providing a second piece of PTR glass and directing second UV radiation through the thermally treated first piece of PTR glass to impinge on the second piece of PTR glass. The method additionally includes exposing predetermined portions of the second piece of PTR glass to the second UV radiation, thermally treating the exposed second piece of PTR glass, and repeating providing and processing of the second piece of PTR glass using additional pieces of PTR glass.

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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):: 8,728,719

Application Number:: 12/544,161

OSTI ID:: 1132263

Resource Relation:: Patent File Date: 2009 Aug 19

Country of Publication:: United States

Language:: English

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Method and system for homogenizing diode laser pump arrays Bayramian, Andrew James https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9331452 US Patent Document 9,331,452	patent	May 2016

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