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Newbie - need 473 nm for scientific research

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I don't know the details I need to know to find what I need...

I'm looking for a 473 nm fiber coupled laser. I need decent power stability (<5%), and ~600 - 800 mW after the fiber. I don't care about the mode, any fiber will do... just need the power. 2 questions:

1) Budget is limited, any idea on cost and supplier for the above?
2) My wavelength is actually flexible, I could go as low as 405 or as high as 488. I am trying to excite fluorescent molecules which have a broad absorption spectrum. What are the cheaper laser wavelengths in this range?

I appreciate any and all help... haven't had much luck trying to figure this out on my own.
 

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You can get 1 watt of 445nm for <$200

Check the Buy, Sell, and Trade section here on LPF
 
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Trevor

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You can get 1 watt or 445nm for <$200
That'll be a little tough to fiber couple, but it should be doable.

If you want a solid plug-and-play system, it might pay to PM wannaburn.

If you want something that is professionally made for a laboratory, you'll want to go with CNI Laser.

-Trevor
 

Helios

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800mW of 473nm would be tens of thousands of dollars just for the laser system.

800mW of 445nm could be as low as $150.

445nm is also a diode vs 473nm being DPSS. Diodes are MUCH more stable generally. For the stability you are looking for you will need active cooling to keep even temps and a constant power source (not a battery)
 
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rhd

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Since you can go as low as 405nm, I might suggest grabbing a 12x 405nm diode. You can push those into your 600 to 800 mW range (just).

My gut is that a single-mode 405nm diode may be easier to fiber couple than a multi-mode 445. I don't know this for fact though, and I don't have experience with fiber coupling, so if someone tells you otherwise, trust their opinion on that point over mine.
 




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