1.2w 637nm 4mm beam @ 0.8mrad would be nice
Originally Posted by bridge
Senior Member
1.2w 637nm 4mm beam @ 0.8mrad would be nice
When God said “Let there be light” he surely must have meant perfectly coherent light.
Senior Member
8x170=1360 not 1w or are you loosing power in the optics ?
When God said “Let there be light” he surely must have meant perfectly coherent light.
Senior Member
Bridge, apologies I stand corrected. Only going on info I had regarding the 900mw.
What spec are the 170mw?
In science one tries to tell people, in such a way as to be understood by everyone, something that no one ever knew before. But in poetry, it's the exact opposite - Paul Dirac
Senior Member
170mw says mitsubi to me. That is what I use and they are wonderful diodes.
Senior Member
Quite possibly. Mine is showing 1.03 at the aperture before dichros (unless it's underdriven for longevity)
In science one tries to tell people, in such a way as to be understood by everyone, something that no one ever knew before. But in poetry, it's the exact opposite - Paul Dirac
Senior Member
If they are knife edged you're going to get some losses in the clipping I would guess. And if they use combining optics there'll be some losses there too
Frikkin Lasers
http://www.frikkinlasers.co.uk
You are using Bonetti's defense against me, ah?
I thought it fitting, considering the rocky terrain.
Senior Member
Fair point. Despite the losses, it's the beam shape that I'm impressed with. Still, 350 odd mw is still quite a loss, even through knife edging/optics.
In science one tries to tell people, in such a way as to be understood by everyone, something that no one ever knew before. But in poetry, it's the exact opposite - Paul Dirac
Senior Member
Yes, but it's not really a 'loss' as you never had it in the first place
Frikkin Lasers
http://www.frikkinlasers.co.uk
You are using Bonetti's defense against me, ah?
I thought it fitting, considering the rocky terrain.
Senior Member
Do Mitsubishi do 170mW? First I heard of it. I know Oclara (was Opnext) do 170mW.
About losses, there will always be some if the aim is to get the 'hot' core of the beams close enough to make the thinnest beam possible on output. There's always going to be compromise, so it will never be diode count multiplied by diode power. I won't try to quantify it, even if the beams were strictly Gaussian I don't want to attempt the maths, and it depends on what compromise the builder wants to make anyway.
Senior Member
Which red module is that in the pictures? I have looked at goldenstars website and I see a few modules in the ~1watt power.
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