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- W2346942460 abstract "A long-lived UV laser is an enabling technology for a number of high-priority, space-based lidar instruments. Theseinclude next generation cloud and aerosol lidars that incorporates a UV channel, direct detection 3-D wind lidars, andozone DIAL (differential absorption lidar) systems. In previous SBIR funded work we developed techniques forincreasing the survivability of components in high power UV lasers and demonstrated improved operational lifetimes. Inthis Phase III ESTO funded effort we are designing and building a TRL (Technology Readiness Level) 6 demonstratorthat will have increased output power and a space-qualifiable package that is mechanically robust and thermally-stable.For full space compatibility, thermal control will be through pure conductive cooling. Contamination control processesand optical coatings will be chosen that are compatible with lifetimes in excess of 1 billion shots. The 1064nm outputwill be frequency tripled to provide greater than 100 mJ pulses of 355 nm light at 150 Hz. The laser module build wascompleted in the third quarter of 2015 at which time a series of life tests were initiated. The first phase of the lifetimetesting is a 532 nm only test that is expected to complete in April 2016. The 532 nm lifetest will be followed by a 4month half power UV life test and then a four month full power UV life test. The lifetime tests will be followed bythermal/vacuum (TVAC) and vibration testing to demonstrate that the laser optics module design is at TRL 6." @default.
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- W2346942460 date "2016-05-05" @default.
- W2346942460 modified "2023-09-23" @default.
- W2346942460 title "UV lifetime demonstrator for space-based applications" @default.
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- W2346942460 doi "https://doi.org/10.1117/12.2228371" @default.
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