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Proceedings Paper

Characterisation Of The Light Pulses Of A Cavity Dumped Dye Laser Pumped By A Cw Mode-Locked And Q-Switched Nd:YAG Laser
Author(s): P. Geist; F. Heisel; A. Martz; J. A. Miehe; R. J.D. Miller
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Paper Abstract

The temporal characteristics of the frequency doubled pulses of a continuous-wave ,Iode-locked or mode-locked and Q-switched Nd:YAG laser have been investigated by means of a streak camera operating in synchroscan (Fig. 1) or triggered mode (Fig. 3). The second harmonic of the cw mode-locked Nd:YAG laser using a KTP crystal, has resulted in 532 nm optical pulses of 60 ps duration with a conversion efficiency of 12 % (Fig. 2A). The frequency doubled output of the continuously pumped acoustooptically Q-switched and mode-locked Nd:YAG laser showed pulses of 80 ps width (Fig. 2B). Stable, reproducible and single pulses at 560 nm of 10 laJ energy and 30 ps duration have been obtained in a synchronously pumped and cavity dumped dye laser (Fig. 4). The cavity dumper consisted of a Pockels cell with avalanche transistor driver. Single shot (Figs. 5A,B and 6A,B) and 500-800 Hz repetition rate (Figs. 5C and 6C) measurements have been carried out by means of a triggered streak ca-mera. Moreover, interesting information of the pulse formation in the cavity has been obtained by triggering the dumper at the beginning (Fig. 5) and at the end (Fig. 6) of the pulse train : for the last condition it appeared short and symmetrical pulses (FWHM 25 ps).

Paper Details

Date Published: 1 February 1985
PDF: 6 pages
Proc. SPIE 0491, 16th Intl Congress on High Speed Photography and Photonics, (1 February 1985); doi: 10.1117/12.967913
Show Author Affiliations
P. Geist, Centre de Recherches Nucleaires (France)
F. Heisel, Centre de Recherches Nucleaires (France)
A. Martz, Centre de Recherches Nucleaires (France)
J. A. Miehe, Centre de Recherches Nucleaires (France)
R. J.D. Miller, University of Rochester (United States)

Published in SPIE Proceedings Vol. 0491:
16th Intl Congress on High Speed Photography and Photonics
Michel L. Andre; Manfred Hugenschmidt, Editor(s)

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