Laser amplifier

Details Laser amplifier Laser amplifier

1992-10-09

1993-06-29

Lee, John D.

Coherent light generators

Particular pumping means

Pumping with optical or radiant energy

372 6, H01S 3091, H01S 3092

Patent

active

052241165

ABSTRACT:
A laser amplifier having an improved pump efficiency for a given pump power comprises a pump source (46) longitudinally coupled at a plurality of coupling points (47, 48, 49) to an optical fibre (41). By thus coupling the pump power into the fibre (41), a fraction of the pump power is applied to the fibre (41) at each of the coupling points (47, 48, 49). A significant improvement in pump efficiency may be achieved in this way.

REFERENCES:
patent: 3582820 (1971-06-01), Snitzer
patent: 4852117 (1989-07-01), Po
Optical Fiber Communication Conference and Sixth International Conference on Integrated Optics and Optical Fiber Communication Technical Digest--Jan. 19-22 1987 Reno, Nev., cover page plus p. 767--H015-3123.
IEEE Journal of Quantum Electronics, vol. 24, No. 2, Feb. 1988, IEEE (New York), US), W. H. Knox: "Femtosecond optical pulse amplification", pp. 388-397.
Electronics Letters, vol. 25, No. 1, Jan. 5, 1989, (Stevenage, Herts, GB), R. I. Laming et al.: "Efficient pump wavelengths of erbium-doped fibre-optical amplifier", pp. 112-114.
Inter. Sch. Rpt. Jul. 1990.

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