http://confocal-microscopy-list.275.s1.nabble.com/Multi-photon-Laser-tp7581421p7581431.html
objective (depending on the objective). Normally one wants to scale the
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> This surprises me, our service people always use the power meter, you need
> to make sure that you are in the linear range of the meter, as you can get
> several hundred mW of IR power out of the objective with todays lasers.
>
> -----Original Message-----
> From: "Claire Brown" <
[hidden email]>
> Sent: 19/12/2013 21:57
> To: "
[hidden email]" <
[hidden email]>
> Subject: Re: Multi-photon Laser
>
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> Thanks for your input Craig. Here is a bit more detail about our situation.
>
> Our Zeiss service people tell us they do the calibration using the standard
> PMTs in the microscope which only measure up to 700 because of the optical
> separation on the 710 (non filter based). So they do the calibration at 699
> nm but we want it to be linear out into the IR. We are trying to see if
> there is an issue with their calibration technique as it doesn't seem
> ideal.
>
> That being said when we measure the laser output at 700 nm or 800 nm are
> not
> linear. This is after two service visits and calibrations when the service
> people tell us all is fine. So it is unclear if it is a calibration or AOM
> issue.
>
> Any input would be appreciated.
>
> Sincerely,
>
> Claire
>