Raman gain medium

Details Raman gain medium Raman gain medium

1982-04-09

1985-06-11

Davie, James W.

Coherent light generators

Raman laser

330 43, 372 4, 372 6, 372 55, 372 59, H01S 330

Patent

active

045233152

ABSTRACT:
A new Raman gain medium, comprising an optical fiber into which molecular gas has been diffused, is disclosed. This new medium combines the advantages of a fiber, i.e., long interaction path, low loss, controllable dispersion, and convenience in handling, with the large Raman wave number shift of the gas, i.e., 4136 cm.sup.-1 for H.sub.2 in silica. A laser made with such a medium can provide a relatively high power, tunable, coherent signal source in the near and far infrared regions.

REFERENCES:
patent: 3705992 (1972-12-01), Ippen et al.
patent: 4039851 (1977-08-01), Jain et al.
patent: 4044315 (1977-08-01), Snitzer
patent: 4063106 (1977-12-01), Ashkin et al.
patent: 4394623 (1983-07-01), Kurnit
Stone et al., "Overtone Vibrations of OH Groups in Fused Silica Optical Fibers", J. Chem. Phys. 76(4), Feb. 15, 1982, pp. 1712-1722.
Hartwig, "Raman Scattering from Hydrogen and Deuterium Dissolved in Silica as a Function of Pressure", J. of Appl. Phys. vol. 47, No. 3, Mar. 1976, pp. 956-959.
Journal of Non-Crystalline Solids 5, "Properties and Structure of Vitreous Silica. II" R. Bruckner, 1971, pp. 177-216.
Grasiuk et al, "Tunable High Power Raman Lasers and Their Applications", Conference: Proceedings of the Conference on Tunable Lasers and Applications, Loen, Norway, Jun. 6-11, 1976, pp. 88-95.

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