[Laser] AOM

Wed, 24 Sep 2003 15:58:43 -0700 (PDT)

John,
The ones I've used change the deflection of the beam, thus creating the
modulation. I don't see 2 outputs.  Maybe your duty cycle is very poor?
How are you measuring your power? Scope should be used with a detector as it is
dynamic.

I'll bet the AOM is not being modulated properly.  My units are TTL compatible.
Are you getting your 1's and 0's up high/low enough?

Jim
N9JIM/6

--- John <[email protected]> wrote:
> Hi all silly question but can I expect the mod'd beam from a AOM to be
> at the same power (80-90%) as what is entering the AOM. At the moment 
> I seem to have two beams one unmod'd (ie passes through) and one mod'd
> with the 800Hz that I'm driving the RF driver unit with.The thing is the 
> mod'd beam is a long way down in power than the unmod'd beam. So is this
> to be expected or am I doing something wrong? I've tried different angle
> and can get a whole line of spots but guess the idea is just to have the
> two. Anyway look forward to any help 73 de John 
> -- 
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> * John McCarthy                           *
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