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Title: Improved solid-state laser sources. Final technical report, 2 June 1981-1 June 1982

Technical Report ·
DOI:https://doi.org/10.2172/5680002· OSTI ID:5680002

During the first program year we have demonstrated diffraction limited output of 600 mJ from an unstable resonator Nd:Glass slab geometry oscillator. We have investigated, in detail, slab geometry lasers and have verified by careful experiments all important predictions of the slab theory. To date we have generated 10 J of output energy at 2.5 Hz from a single multimode, non-Q-switched, slab oscillator at 3.5% storage efficiency, 2% slope efficiency and 1.6% extraction efficiency. We have doubled and Raman shifted the Q-switched 600 mJ slab glass oscillator. We have extended the slab concept to Nd:YAG. Preliminary measurements show that the slab geometry eliminates thermal focusing and stress induced birefringence in Nd:YAG. We have demonstrated the advantages of the miniature pedestal growth technology by growing Eu:Y/sub 2/O/sub 3/ single crystal fibers in addition to Nd:YAG and sapphire single crystal fibers.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
5680002
Report Number(s):
UCRL-15561; ON: DE84002784
Resource Relation:
Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English