Femtosecond laser device having output stabilizing mechanism

Details Femtosecond laser device having output stabilizing mechanism Femtosecond laser device having output stabilizing mechanism

2006-04-20

2008-12-16

Rodriguez, Armando (Department: 2828)

Coherent light generators

Particular beam control device

Optical output stabilization

C372S029010

Reexamination Certificate

active

07466730

ABSTRACT:
A femtosecond laser with stabilized output, and a method for stabilizing the output of a femtosecond laser. The femtosecond laser comprises a regenerative amplifier, a photodetector, a control portion and a variable attenuator, wherein the variable attenuator is provided so as to be capable of controlling an output beam of the regenerative amplifier, the photodetector is provided between the regenerative amplifier and the variable attenuator, the photodetector detects an output beam of the regenerative amplifier and transmits the results of the detection to a power controller, and the power controller controls the variable attenuator depending on the a difference between a predetermined target value and the results.

REFERENCES:
patent: 2002/0171917 (2002-11-01), Lelic et al.
patent: 2005/0111500 (2005-05-01), Harter et al.

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