Johannes Helm wrote:

>As what concerns the coupling of a UV laser beam into a single mode fiber:
>As far as I know it has not yet been done.
...
>It might well be that this information is outdated and that somebody
>who knows more about fiber optics will be so kind and tell us. Thank
>you in advance.

I have heard Leica confocal salespeople say that Leica has solved the
problem on how to connect a UV laser to their microscope with an optical
fiber. I do not know how they do it and how well they conserve the
properties of the laser beam, but apparently it works.

Perhaps the Leica engineers can tell us.

Berndt Ehinger


>
>Another alternative to minimize a spot-size would, of course, be to use
>a CSLM and illuminate the specimen via a high-NA lens with IR light from
>a TiSap laser generating 2-photon excitation. Several papers have been
>published about successful experiments applying this technique. It is,
>however, a very expensive method.
>
>Best regards
>
>Johannes
>--
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>Paul Johannes Helm
>
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__________________________________

Berndt Ehinger
Department of Ophthalmology
Lund University Hospital
S-221 85 Lund, Sweden
Phone +46 46 17 16 90
Fax +46 46 211 50 74
__________________________________