Optical absorption, absorption saturation and a useful figure of merit for chromium doped glasses

    Authors

    E. Munin; A. B. Villaverde; M. Bass;K. CerquaRichardson

    Comments

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    Abbreviated Journal Title

    J. Phys. Chem. Solids

    Keywords

    optical materials; optical properties; BROAD-BAND; FORSTERITE; Chemistry, Multidisciplinary; Physics, Condensed Matter

    Abstract

    Chromium-doped aluminate and silicate glasses have been prepared in both inert and oxidizing atmospheres. Spectroscopic measurements indicate that some of the glasses incorporated the chromium ion in the +4 valence state. These Cr4+ doped glasses exhibit a broad spectral emission covering the communication window and the eye safe region around 1.5 mu m. Ten glass samples and two crystalline materials, were used to study the phenomenon of saturable absorption in the Cr4+ ion. A figure of merit was defined to compare the performance of different materials as saturable absorbers. The preparing conditions that lead to a glass saturable absorber with better figure of merit have been investigated. A Q-switched Cr:LiSAF laser was used for the saturable absorption measurements. Copyright (C) 1996 Elsevier Science Ltd

    Journal Title

    Journal of Physics and Chemistry of Solids

    Volume

    58

    Issue/Number

    1

    Publication Date

    1-1-1997

    Document Type

    Article

    Language

    English

    First Page

    51

    Last Page

    57

    WOS Identifier

    WOS:A1997WB62100007

    ISSN

    0022-3697

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