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  • Title: Adjustment-free cat's eye cavity He-Ne laser and its outstanding stability.
    Author: Xu Z, Zhang S, Li Y, Du W.
    Journal: Opt Express; 2005 Jul 11; 13(14):5565-73. PubMed ID: 19498553.
    Abstract:
    This paper introduces an innovative He-Ne laser which exhibits many advantages to current He-Ne lasers. With cat's eye reflector as the reflecting mirror, the new laser can solve the conventional problems of laser adjustment and power stability. Comprehensive experiments are carried out both in a half-external cavity and a full-external cavity He-Ne laser. Then the results from the cat's eye cavity, plane-concave mirror cavity and concave-concave mirror cavity are compared, which show that in halfexternal cavity laser, cat's eye cavity can improve the laser stability up to 10 times better than other cavities and lower the power drift significantly. And in the full-external case the improvements are much greater even up to 60 times and power drift is minished greatly too. The adjustment problem is also considered and solved. A stable and adjustment-free He-Ne laser is finally realized. The examination of a cat's eye reflector is described.
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