Rectangular laser pulse formation by an interferometer-type device that uses Cr4+:YAG plate

Margarita Ang Deneva; Elisaveta R. Nikova; Marin N. Nenchev

doi:10.1117/12.518896

4 November 2003 Rectangular laser pulses formation by an interferometer-type device that uses Cr⁴⁺:YAG plate

Margarita Ang Deneva, Elisaveta R. Nikova, Marin N. Nenchev

Proceedings Volume 5226, 12th International School on Quantum Electronics: Laser Physics and Applications; (2003) https://doi.org/10.1117/12.518896
Event: 12th International School on Quantum Electronics Laser Physics and Applications, 2002, Varna, Bulgaria

Abstract

We propose a simple interferometer-type-device that permits to produce a variable length (1 - 15 ns) rectangular laser pulses, starting from a long (approximately 10 - 50 ns) conventional pulse that is emitted by Q-switched Nd³⁺-doped laser. The system uses an one time switched electro-optical pulse division at the input laser pulse and cutting all-optically a rectangular part of one of the formed partial pulses by appropriate bleaching of interferometer (Fabry-Perot, Fizeau) which gap is an Cr⁴⁺:YAG plate. The precisely controlled bleaching is produced in reliable manner using the second partial pulses and an optical delay line. The length of the obtained rectangular pulse can be precisely varied between 1 and 15 ns. The technique proposed can be applied also for the other lasers.

Citation Download Citation

Margarita Ang Deneva, Elisaveta R. Nikova, and Marin N. Nenchev "Rectangular laser pulses formation by an interferometer-type device that uses Cr⁴⁺:YAG plate", Proc. SPIE 5226, 12th International School on Quantum Electronics: Laser Physics and Applications, (4 November 2003); https://doi.org/10.1117/12.518896

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KEYWORDS

Pulsed laser operation

Mirrors

Switching

YAG lasers

Interferometers

Q switched lasers

Rectangular pulse

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