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Proceedings Paper

Coherent photon seeding: a technique to generate clean subpicosecond pulses
Author(s): Walter J. Hodel; Heinz P. Weber; P. Beaud; J. Q. Bi; D. S. Peter
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Paper Abstract

A powerful new technique for the generation of stable ultra-short laser pulses is reported. The basic idea of the method is to couple back a tiny fraction of the laser output into the main laser cavity. This coherent seeding signal suppresses the deleterious influence of the spontaneous emission on the pulse formation to a large extent that results in a considerable improvement of the laser output stability. Experimental results for two different laser systems are presented together with numerical simulations that serve to illustrate the principle of the technique.

Paper Details

Date Published: 30 November 1992
PDF: 8 pages
Proc. SPIE 1842, Mode-Locked Lasers and Ultrafast Phenomena, (30 November 1992); doi: 10.1117/12.131866
Show Author Affiliations
Walter J. Hodel, Univ. of Bern (Switzerland)
Heinz P. Weber, Univ. of Bern (Switzerland)
P. Beaud, Univ. of Bern (Switzerland)
J. Q. Bi, Univ. of Bern (Switzerland)
D. S. Peter, Univ. of Bern (Switzerland)


Published in SPIE Proceedings Vol. 1842:
Mode-Locked Lasers and Ultrafast Phenomena

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