STP1015: Study of Temporal and Spatial Intensity Variations and Intracavity Damage Thresholds of Alexandrite Lasers

    Harter, DJ
    Allied-Signal Corporation, Mt. Bethel, NJ

    Rainnee, H
    Philon Corp., NY, NY

    Heiney, AJ
    Allied-Signal Corporation, Mt. Bethel, NJ

    Pages: 7    Published: Jan 1988


    Abstract

    The energy densities which can be obtained in a laser resonator before optical damage occurs are usually much lower than the optical damage thresholds measured in extracavity laser experiments. We have measured intracavity optical damage thresholds in an alexandrite laser operating in both single- and multitransverse mode and found the multitransverse mode laser has a much lower damage threshold. We studied the temporal and spatial variations of a multitransverse mode laser and found intensity hot spots which may be an important factor in the difference in the intracavity damage thresholds.

    Keywords:

    alexandrite, antireflection coatings, intracavity optics, laser damage, multimode laser, surface damage


    Paper ID: STP18781S

    Committee/Subcommittee: F01.11

    DOI: 10.1520/STP18781S


    CrossRef ASTM International is a member of CrossRef.