Optically-excited pulsed laser

Details Optically-excited pulsed laser Optically-excited pulsed laser

H - Electricity

01

S

345/31

H01S 3/23 (2006.01) H01S 3/07 (2006.01) H01S 3/14 (2006.01) H01S 3/092 (2006.01)

Patent

CA 1341338

Improvements in or relating to lasers. A composite lasing medium, 11, comprising a plurality of separated lasing mediums 33, 32, the separated lasing mediums being so arranged that the excitation traverses the mediums in series, the separated lasing mediums being selected so that each medium traversed by the excitation transmits the excitation for all the mediums further from the source of excitation. The invention provides a composite lasing medium which has, in the case of a pulsed electromagnetic excitation from xenon flash discharges tubes 4, a wide optical absorption and emission band, increased conversion efficiency due to both the excitation of the two separated lasing mediums and the fluorescent emission of one medium exciting the other medium and the protection of the inner medium 32 (Sulforhodamine-B in methanol) from the deleterious effects of the excitation absorbed by the outer medium 33 (Coumarin 102 in methanol).

454982

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