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Proceedings Paper

Laser pulse shortening due to self-excited hf oscillations in optoelectronic negative feedback system
Author(s): M. V. Gorbunkov; Y. V. Shabalin
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Paper Abstract

Simple improvement of the control system in the laser controlled by fast time-shifted negative feedback allow us to obtain essentially shorter optical pulses in mode-locking regime. Mathematical model was developed, computer simulation was performed. We also have experimentally demonstrated two times pulse shortening as a result of HF electric oscillations self-excitation in the control system. Control system unit with resonant frequency approximately 1 GHz based on high- voltage silicon mesostructure was created. This scheme was applied to Nd-YAG laser. Formation process and stable shape of the control voltage were studied. Fine time structure of the emitted light was investigated by use of the direct streak- camera method, minimum laser pulse duration was 70 plus or minus 15 ps.

Paper Details

Date Published: 22 June 1999
PDF: 6 pages
Proc. SPIE 3516, 23rd International Congress on High-Speed Photography and Photonics, (22 June 1999); doi: 10.1117/12.350444
Show Author Affiliations
M. V. Gorbunkov, P.N. Lebedev Physical Institute (Russia)
Y. V. Shabalin, P.N. Lebedev Physical Institute (Russia)


Published in SPIE Proceedings Vol. 3516:
23rd International Congress on High-Speed Photography and Photonics
Valentina P. Degtyareva; Mikhail A. Monastyrski; Mikhail Ya. Schelev; Alexander V. Smirnov, Editor(s)

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