Tellurite glass and fiber amplifier

Details Tellurite glass and fiber amplifier Tellurite glass and fiber amplifier

1992-10-15

1993-10-05

Moskowitz, Nelson

Optical: systems and elements

Optical amplifier

Optical fiber

359343, 372 6, 372 40, 2423014, H01S 300, H01S 316

Patent

active

052510620

ABSTRACT:
A tellurite glass particularly usable for an amplifier or oscillator utilizing an optical fiber or other guided wave structure. In approximate terms, the glass contain between 58 and 84 molar % of TeO.sub.2, up to 24 molar % Na.sub.2 O, and between 10 and 30 molar % of ZnO. Other alkali and divalent metals may be substituted for the Na and Zn respectively. Combinations of these tellurite glasses can be formed as an optical fiber (10) having a core (12) with a higher refractive index than that of the cladding (14). The tellurite glass of the core, when composed of at least 0.05 molar % Na.sub.2 O, can be doped with large amounts of Er, Pr, or Nd to act as a fiber amplifier at 1.5 or 1.3 .mu.m when pumped with light of a specified shorter wavelength. The core can be doped with other rare-earth metals which would provide optical amplifiers or oscillators at wavelengths appropriate to their lasing characteristics.

REFERENCES:
patent: 3462707 (1969-08-01), Pearson et al.
patent: 3836868 (1974-09-01), Cooley
patent: 3836869 (1974-09-01), Cooley
patent: 3836870 (1974-09-01), Cooley
patent: 3836871 (1974-09-01), Cooley
patent: 3883357 (1975-05-01), Cooley
patent: 4015217 (1977-03-01), Snitzer
patent: 4265517 (1981-05-01), Blair et al.
patent: 4712075 (1987-12-01), Snitzer
patent: 5093288 (1992-03-01), Aitken et al.
Ryba-Romanowski, W; Acta. Phys. Pol. A (Poland), vol. A78, #5, pp. 761-768, Nov. 1990; abst. only supplied herewith.
Yahkhind et al.; Soc. J. Glass. Phys. & Chem., vol. 6, #4, pp. 323-329, Aug. 1980; abst. only supplied.
Inoue et al.; Nat. Inst. for Res. Inorg. Mater.; Physics of Non-Crystalline Solids, 761, pp. 281-285, 1992; abst only.
Kanoun et al.; P. Sys. Status Solids, vol. 162, #2, pp. 523-529, Dec. 1, 1990; abst only supplied.
M. J. Weber et al., "Optical properties of Nd.sup.3+ in tellurite and phosphotellurite glasses," Journal of Applied Physics, 1981, vol. 52, pp. 2944-2949.
H. Nasu et al., "Third harmonic generation from Li.sub.2 O-TiO.sub.2 -TeO.sub.2 glasses," Journal of Non-Crystalline Solids, 1990, vol. 124, pp. 275-277.
S. Tanabe et al., "Upconversion fluorescences of TeO.sub.2 - and Ga.sub.2 O.sub.3 -based oxide glasses containing Er.sup.3+, Journal of Non-Crystalline Solids," 1990, vol. 122, pp. 79-82.
J.-S. Wang et al., "Erbium doped tellurite glasses," Materials Research Society Symposium Proceedings: Optical Waveguide Materials, 1992, vol. 244, pp. 209-214.
Y. Ohishi et al., "Pr.sup.3+ -doped fluoride fiber amplifier operating at 1.31 .mu.m," Post-deadline Paper PD2, Optical Fiber Conference, 1991, San Diego, Calif.
J. L. Jackel et al., "Ion-exchanged optical waveguides for all-optical switching," Applied Optics, 1990, vol. 29, pp. 3126-3139.

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