CAVE: the design of a precision metrology instrument for studying performance of KDP crystals
A device has been developed to measure the frequency conversion performance of large aperture potassium dihydrogen phosphate (KDP) crystals. Third harmonic generation using ICDP is critical to the function of the National Ignition Facility (NIF) laser. The crystals in the converter can be angularly or thermally tuned but are subject to larger aperture inhomogeneities that are functions of growth manufacturing and - mounting. The CAVE (Crystal Alignment Verification Equipment) instrument scans the crystals in a thermally and mechanically controlled environment to determine the local peak tuning angles. The CAVE can then estimate the optimum tuning angle and conversion efficiency over the entire aperture. Coupled with other metrology techniques, the CAVE will help determine which crystal life-cycle components most affect harmonic conversion.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 302872
- Report Number(s):
- UCRL-JC-130318; CONF-980636-; ON: DE98058767; BR: YN0100000
- Resource Relation:
- Conference: 1998 diffractive optic and micro optics conference, Kailua, HI (United States), 8-12 Jun 1998; Other Information: PBD: 30 Mar 1998
- Country of Publication:
- United States
- Language:
- English
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