Acousto-optic device and method using tellurite glass compositio

Glass manufacturing – Processes – Forming product or preform from molten glass

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65117, 501 41, C03B 2500

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043126600

ABSTRACT:
An improved acousto-optic device and method featuring an acousto-optic element having an alkali metal oxide-tellurite glass composition comprising at least 92 wt % tellurium dioxide and one or more alkali metal oxides selected from the group consisting of sodium oxide and potassium oxide. A process for decreasing the acoustic attenuation of the aforementioned glass composition by annealing is also disclosed.

REFERENCES:
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patent: 3914129 (1975-10-01), Matthew et al.
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Masuda et al., Japanese patent application No. 74/100,525 (Mar. 9, 1976), Publication Number 28106/76.
Izumitani and Masuda, "Acousto-Optical Properties of Tellurite Glasses", Tenth International Congress of Glass, 5 pp. 74-81, (1974).
Tatarintsev et al., "Effect of Dissolved Water on the Electric Conductivity of Alkali Metal Tellurite Glasses", Fiz. Khim. Stekla, 2 (3), pp. 286-287 (1976).
Tatarintsev et al., "The Effect of Water on the Infrared Transmission of Highly Refracting Tellurite Glasses and a Method for the Quantitative Determination", Opt.-Mekh. Prom., 1972, vol. 39, No. 10, pp. 72-73.
Yakhkind, "Physiochemical Properties and Structure of Alkali Metal Tellurite Glasses", Stekloobraznoe Sostoyanie, 1971, pp. 100-103.
Yakhkind et al., "Solution Kinetics of Alkali Tellurite Glasses", Izv. Akad. Nauk SSSR, Neorg. Mater., vol. 8, No. 9, pp. 1654-1658, (1972).
V. Vipat'eva et al., "Electrical Conductivity and the Glass Formation Region in the Na.sub.2 O-K.sub.2 O-TeO.sub.2 System", Doklady Bolgarskoi Akademeii Nauk, vol. 28, No. 3, pp. 371-374 (1975).
Morozova et al., "Infrared Spectroscopic Study of the Structure of Lithium Tellurite Glasses", Fiz. Khim. Stekla, vol. 3, No. 3, pp. 197-201 (1977).

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