Suppression of the second intracavity pulse in a synchronously p

Coherent light generators – Particular operating compensation means

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H01S 310

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048624691

ABSTRACT:
The subject invention relates to method of suppressing one of the counterpropagating intracavity pulses generated in a dye laser synchronously pumped by the output of a mode locked Q-switched pump laser. The method includes extracting a portion of one of the pulses generated in the cavity such that the other pulse experiences a greater effective gain. The pulse with the highest effective gain will dominate the other pulse and at the steady state only one pulse will exist in the cavity. In the preferred embodiment, a double pass acousto-optic cell is used to extract the both the unwanted pulse and, at a later time, the high energy, useful pulse. In this case, maximum efficiency is achieved by placing the dye cell at one of a number of well defined locations within the optical cavity.

REFERENCES:
patent: 3675151 (1972-07-01), Mack
patent: 3703687 (1972-11-01), Maydan
patent: 3904987 (1975-09-01), Cheng
patent: 4479220 (1984-10-01), Bor et al.
patent: 4485473 (1984-11-01), Tang et al.
patent: 4646308 (1987-02-01), Kafka et al.
A. Scavennec, "Experimental Study of a Continuously Pumped, Actively Mode-Locked Dye Laser", Mar. 1977, pp. 335-338; vol. 20 #3 Optics Communications.

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