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Rev Sci Instrum ; 78(1): 013105, 2007 Jan.
Article in English | MEDLINE | ID: mdl-17503905

ABSTRACT

We present a control system, which allows an automatic optimization of the pulse train stability in a mode-locked laser cavity. In order to obtain real-time corrections, we chose a closed loop approach. The control variable is the cavity length, mechanically adjusted by gear system acting on the rear cavity mirror, and the controlled variable is the envelope modulation of the mode-locked pulse train. Such automatic control system maintains the amplitude of the mode-locking pulse train stable within a few percent rms during the working time of the laser. Full implementation of the system on an Nd:yttrium lithium fluoride actively mode-locked laser is presented.


Subject(s)
Fluorides , Lasers , Lithium , Neodymium , Yttrium , Time Factors
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