A simple and easy to implement digital technique for frequency locking of a pair of diode-pumped solid state lasers is presented. The beat frequency of the two lasers, suitably prescaled, is compared to a reference oscillator. The error signal is used to drive the slave laser via its in-built PZT. An Allan variance of 1 part in 10(-6) over a typical measurement time of 0.1s, over the whole range of synthetic wavelengths of interest, proves the effectiveness of the locking system.
Simple digital technique for efficient frequency locking of diode-pumped Nd:YAG lasers
MINONI, Umberto;DOCCHIO, Franco
1994-01-01
Abstract
A simple and easy to implement digital technique for frequency locking of a pair of diode-pumped solid state lasers is presented. The beat frequency of the two lasers, suitably prescaled, is compared to a reference oscillator. The error signal is used to drive the slave laser via its in-built PZT. An Allan variance of 1 part in 10(-6) over a typical measurement time of 0.1s, over the whole range of synthetic wavelengths of interest, proves the effectiveness of the locking system.File in questo prodotto:
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