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Dear all,

I am building a two-photon system around a Millenia 15W pumping a Tsunami
from Spectra-Physics. I do have some issues concerning the beam pointing
stability, especially on a day to day basis since I have to use those M1 and
M10 mirrors to optimise output power. So for this I am planning to include a
beam stabiliser consiting of quadrant detectors and piezo mirror mounts.
In additon, the beam profile is eliptical so that, after telescope
expansion, its tough to align it through pinholes. A fiber would be great,
but that only exists for 800+-10nm. I tried cylindrical lenses and a spatial
filter but I am not happy with neither solutions.

I was wondering what your experience with the Tsunami is and if there are
any suggestions to make my life easier.


thanks alot and happy new year

Philipp