Fiber corrected 638nm laser diode find on eBAy

[kecked]

638nm 1W TO-5 φ9mm Red Laser Diode with FAC Fiber, Square Spot | eBay

Protect your yourself from the laser when you operate on it. We will try our best to solve your problem as soon as possible. We cherish your suggestions very much. We are always ready and will try our best to help you!

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looks interesting. Divergence is 1:9. 1:9. Square. With no correction. It sure if this was posted before. Same group repackaging blue diodes in windowed cases with inert gas. I’m impressed.

 

[Alaskan]

Check with CDBEAM777, he has some of these and I believe, characterized them.

 

[kecked]

Yea I’m sending email to see if they will glue two to a pbs cube and the do a second with a blue and green. One dichro only then.

 

[Alaskan]

Problem I have been having with all laser diodes is the angles of their outputs are not consistent enough I wonder if their adding a FAC by hand might skew it even more.

 

[Shmackitup]

I have some of these as well. The FAC doesn't really do too much once you add a collimator lens. It goes back to being a rectangle when focused.

 

[Alaskan]

Damn, I was so hopeful, but thank you for the info.

 

[Unown (WILD)]

I bought this and totally forgot I had it. I should complete the build and see how well it does with a g2 and g8 lens.

638nm 1.2W TO-5 φ9mm Red Laser Diode with FAC Fiber, Linear Spot | eBay

Find many great new & used options and get the best deals for 638nm 1.2W TO-5 φ9mm Red Laser Diode with FAC Fiber, Linear Spot at the best online prices at eBay! Free shipping for many products!

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[Shmackitup]

I made a pointer with one of these. The Beam Expander did help quite a bit.

 

[aaronnoraa]

There was something that I remembered about these diodes, that for the FAC to be able to do it's job you must use a long FL lens (like, really long, enough that it will need to be larger than what will fit on a 12mm module) to allow the beam to expand enough that the profile is square when it inputs the lens, then the beam will stay square after collimation.