Athermal laser glass composition

Details Athermal laser glass composition Athermal laser glass composition

1980-12-03

1982-06-08

McCarthy, Helen M.

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

501 45, 501 48, 501 73, C03C 304, C03C 316, C09K 1142

Patent

active

043338488

ABSTRACT:
A phosphate laser glass in which the optical path length is substantially independent of temperature, or "athermal", particularly under rapid pulsing, and chemically stable, while providing high gain. The base glass composition comprises, in mole percent, 55 to 70% P.sub.2 O.sub.5, 3 to 15% of an alkali metal oxide, preferably Li.sub.2 O plus K.sub.2 O, 20 to 30% BaO and 0.5 to 5% Al.sub.2 O.sub.3. Up to 15% of the BaO may be replaced by CaO, SrO or MgO and part of the Al.sub.2 O.sub.3 may be replaced by Nd.sub.2 O.sub.3. The total Al.sub.2 O.sub.3 plus Nd.sub.2 O.sub.3 is 4 mole percent .+-.1.5%. The laser glass composition also includes a laseable component, preferably Nd.sub.2 O.sub.3 and preferably includes a solarization inhibitor.

REFERENCES:
patent: 4022707 (1977-05-01), Deutschbein et al.
patent: 4075120 (1978-02-01), Myers et al.
patent: 4076541 (1978-02-01), Rapp
patent: 4239645 (1980-12-01), Izumitani et al.
patent: 4248732 (1981-02-01), Myers et al.
Chem Abstracts-88 (1978) item 175994w, p. 357.

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