Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Newbie - need 473 nm for scientific research

Joined
Jul 27, 2011
Messages
1
Points
0
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.
 





Joined
Nov 14, 2009
Messages
756
Points
0
You can get 1 watt of 445nm for <$200

Check the Buy, Sell, and Trade section here on LPF
 
Last edited:

Trevor

0
Joined
Jul 17, 2009
Messages
4,386
Points
113
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

0
Joined
Jan 7, 2011
Messages
1,341
Points
48
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)
 
Last edited:

rhd

0
Joined
Dec 7, 2010
Messages
8,475
Points
0
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.
 




Top