×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

what is laser pulse shaping?

what is laser pulse shaping?

what is laser pulse shaping?

(OP)
And how can I change the pulse shaping in a laser machine independent of machine itself. Meaning that I do have a laser machine that doesn't allow me to vary laser pulse shaping, can I use any kind of mirror to connect to it in order to change the pulse shaping?

thanks

RE: what is laser pulse shaping?

(OP)
I am not using for a cutting application, i need to run some tests on crystals. By the way, what is laser pulse shaping?

RE: what is laser pulse shaping?

It's exactly what it says, you change the shape of the output pulse. You might go from a sharp impulse with a long fadeout to a more square pulse, etc.

Why are you trying to shape the pulse?

Dan - Owner
http://www.Hi-TecDesigns.com

RE: what is laser pulse shaping?

The typical laser pulse is supposed to be Gaussian in the time domain as well, but it rarely is.

Pulsed lasers typically have Q switches and there is voltage shaping that can be done to the switching voltage to modify the pulse, but for short pulses, there's not much that can really be done, since everything is running at its maximum speed already. Any pulse that's short relative to the laser resonator path length is pretty much fixed.

TTFN
FAQ731-376: Eng-Tips.com Forum Policies

Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers

RE: what is laser pulse shaping?

(OP)
thanks everyone,

Dan, I am trying to change pulse shaping since I need to investigate how change in pulse shaping affects my samples.

How in general pulse shaping affects the laser? does it increases the power delivered?

thanks again in advance

RE: what is laser pulse shaping?

(OP)
Thank you.

RE: what is laser pulse shaping?

What kind of laser are you pulsing? It makes a big difference. If it is Q switched, there is not much you can do. With CO2 pulse lasers, shaping the electrical input pulse can control the optical pulse somewhat. The laser cavity has to be designed specifically for an application like this. Shaping the electrical pulse is done with a HV pulse forming network.

Timelord

RE: what is laser pulse shaping?

And fiber lasers can have a drastic effect on processing capabilities with shaping. Short, hot pulses will hog out a lot of material... long, cool pulses can grow oxides. It all depends upon what you want to do.

Dan - Owner
http://www.Hi-TecDesigns.com

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close