Study on the possibilities of controlling the laser output beam properties by an intracavity deformable mirror

• Autorzy: Rabczuk G. , Sawczak M.
• Języki publikacji: EN

Abstrakty

EN

The possibilities of controlling the laser beam properties by a deformable mirror introduced into the laser optical cavity were studied theoretically and experimentally. The experiments were performed under conditions of an industrial high power transverse flow cw CO₂ laser operating with a stable resonator of a folded configuration. A deformable bimorph mirror of a surface profile controlled by the voltage applied to the mirror electrodes is implemented to the laser system as a back cavity mirror or as a one of the inner folding mirrors. The near- and far- field characteristics of the laser beam versus the resonator configuration controlled by the changes of the focal length of the deformable mirror are discussed in the paper. The analysis reveals that the resonator with an inner deformable mirror is much more sensitive to the mirror curvature variations than the resonator in which the deformable mirror is used as a back cavity mirror. The presented results show that dynamic and controllable changes in the resonator properties result in the controlled modification and optimisation of the laser output power and spatial parameters of the laser radiation.

Słowa kluczowe

EN

variable curvature mirror; laser resonator; output beam characteristics

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2006
• Tom: Vol. 14, No. 2
• Strony: 141--147
• Opis fizyczny: Bibliogr. 17 poz., wykr.

Twórcy

autor

Rabczuk G.

autor

Sawczak M.

• Szewalski Institute of Fluid Flow Machinery, Polish Academy of Sciences, 14 Fiszera Str., 80-952 Gdańsk, Poland,

Bibliografia

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