polarization controller of 100MHz Ti:Saphire Laser pulse train ?

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KK - 24 Mar 2005 03:07 GMT

Hi, everyone

I am looking for a ~100MHz polarization rotator which can change the
polarization state of each pulse from ~100MHz Ti:Saphire laser.

It will be like a pockel cell.

Can you tell me if I can buy this type of controller? If yes, could you
recommend some vendors?

Thanks.

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trp8xtl02@sneakemail.com - 27 Mar 2005 07:25 GMT

Hmm... Don't certain AOMs change polarization?

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Rene Tschaggelar - 29 Mar 2005 16:21 GMT

> Hi, everyone
>
[quoted text clipped - 5 lines]
> Can you tell me if I can buy this type of controller? If yes, could you
> recommend some vendors?

That means the HV of the pockels cell needs to swing
to a certain adjustable level within 2ns or so. That
will be pretty hard. Switching the HV to a fixed level
within this timeframe is doable but only with a reparate
of 10kHz or so. The power dissipation of the driver
limits the reprate. This due to the capacitive load and
the high currents required to load the cap.

Rene

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Christoph Bollig - 30 Mar 2005 10:46 GMT

> > Hi, everyone
> >
[quoted text clipped - 15 lines]
>
> Rene

Hi KK,

could you be a bit more precise what you want to do? As Rene
mentioned, they do exist (often reffered to as "pulse picker"), but
you can't switch them for every other pulse.

Christoph

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Natural Science Forum / Physics / Optics / March 2005

polarization controller of 100MHz Ti:Saphire Laser pulse train ?