Phosphate base laser glasses

Details Phosphate base laser glasses Phosphate base laser glasses

1976-03-17

1980-12-16

Vertiz, O. R.

Compositions

Inorganic luminescent compositions

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

2523016P, 106 47Q, C03C 316, C09K 1142, C09K 1146, C03C 328

Patent

active

042396450

ABSTRACT:
A phosphate base laser glass comprising 55-70% P.sub.2 O.sub.5, 1-15% Al.sub.2 O.sub.3, 0-25% Li.sub.2 O, 0-25% Na.sub.2 O, 0-8% K.sub.2 O, the total proportion of Li.sub.2 O, Na.sub.2 O, and K.sub.2 O being 10-25%, 0-15% BaO, 0-15% ZnO, 0-15% CaO, 0-15%, SrO, 0-15% MgO, the total proportion of BaO, ZnO, CaO, SrO, and MgO being 5-15%, 0-5% Y.sub.2 O.sub.3, 0-5% La.sub.2 O.sub.3, 0-5% GeO.sub.2, 0-5% CeO.sub.2, 0-3% Nb.sub.2 O.sub.5, 0-3% MnO.sub.2, 0-2% Ta.sub.2 O.sub.5, 0-1% Sb.sub.2 O.sub.3, and 0.01-5% Nd.sub.2 O.sub.3, all % being mole %.
The phosphate base laser glass of this invention has a high induced emission cross section, a low non-linear refractive index coefficient, and excellent acid resistance and divitrification resistance. By replacing partially or wholely one or more of LiO.sub.2, Na.sub.2 O, K.sub.2 O, BaO, ZnO, CaO, SrO, MgO or Al.sub.2 O.sub.3 by LiF, NaF, KF, BaF.sub.2 ZnF.sub.2, CaF.sub.2, SrF.sub.2, MgF.sub.2 or AlF.sub.3, respectively, the above properties of the laser glass are further improved.

REFERENCES:
patent: 3580859 (1971-05-01), Buzhinsky et al.
patent: 3731226 (1973-05-01), Snitzer et al.
patent: 3846142 (1974-11-01), Buzhinsky et al.
patent: 4022707 (1977-05-01), Deutschbein

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