Welcome
Username or Email:

Password:


Missing Code




[ ]
[ ]
Online
  • Guests: 29
  • Members: 0
  • Newest Member: omjtest
  • Most ever online: 396
    Guests: 396, Members: 0 on 12 Jan : 12:51
Members Birthdays:
No birthdays today

Next birthdays
05/27 Daniel Davis (53)
05/29 Zonalklism (33)
05/29 Dr Hankenstein (67)
Contact
If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.


Special Thanks To:
  • Aaron Holmes
  • Aaron Wheeler
  • Adam Horden
  • Alan Scrimgeour
  • Andre
  • Andrew Haynes
  • Anonymous000
  • asabase
  • Austin Weil
  • barney
  • Barry
  • Bert Hickman
  • Bill Kukowski
  • Blitzorn
  • Brandon Paradelas
  • Bruce Bowling
  • BubeeMike
  • Byong Park
  • Cesiumsponge
  • Chris F.
  • Chris Hooper
  • Corey Worthington
  • Derek Woodroffe
  • Dalus
  • Dan Strother
  • Daniel Davis
  • Daniel Uhrenholt
  • datasheetarchive
  • Dave Billington
  • Dave Marshall
  • David F.
  • Dennis Rogers
  • drelectrix
  • Dr. John Gudenas
  • Dr. Spark
  • E.TexasTesla
  • eastvoltresearch
  • Eirik Taylor
  • Erik Dyakov
  • Erlend^SE
  • Finn Hammer
  • Firebug24k
  • GalliumMan
  • Gary Peterson
  • George Slade
  • GhostNull
  • Gordon Mcknight
  • Graham Armitage
  • Grant
  • GreySoul
  • Henry H
  • IamSmooth
  • In memory of Leo Powning
  • Jacob Cash
  • James Howells
  • James Pawson
  • Jeff Greenfield
  • Jeff Thomas
  • Jesse Frost
  • Jim Mitchell
  • jlr134
  • Joe Mastroianni
  • John Forcina
  • John Oberg
  • John Willcutt
  • Jon Newcomb
  • klugesmith
  • Leslie Wright
  • Lutz Hoffman
  • Mads Barnkob
  • Martin King
  • Mats Karlsson
  • Matt Gibson
  • Matthew Guidry
  • mbd
  • Michael D'Angelo
  • Mikkel
  • mileswaldron
  • mister_rf
  • Neil Foster
  • Nick de Smith
  • Nick Soroka
  • nicklenorp
  • Nik
  • Norman Stanley
  • Patrick Coleman
  • Paul Brodie
  • Paul Jordan
  • Paul Montgomery
  • Ped
  • Peter Krogen
  • Peter Terren
  • PhilGood
  • Richard Feldman
  • Robert Bush
  • Royce Bailey
  • Scott Fusare
  • Scott Newman
  • smiffy
  • Stella
  • Steven Busic
  • Steve Conner
  • Steve Jones
  • Steve Ward
  • Sulaiman
  • Thomas Coyle
  • Thomas A. Wallace
  • Thomas W
  • Timo
  • Torch
  • Ulf Jonsson
  • vasil
  • Vaxian
  • vladi mazzilli
  • wastehl
  • Weston
  • William Kim
  • William N.
  • William Stehl
  • Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
Forums
4hv.org :: Forums :: Electromagnetic Radiation
« Previous topic | Next topic »   

YAG Laser - Not Sure What I've Got

Move Thread LAN_403
Part Scavenger
Wed Jul 08 2015, 07:03PM Print
Part Scavenger Registered Member #79 Joined: Thu Feb 09 2006, 11:35AM
Location: Arkansas
Posts: 673
Hey guys I picked up this laser assembly today.

Model number is LTI-245. The only information I can find that fits that description is here: http://sirdiin.20m.com/possl.htm

According to this, the specs are:
Wavelength- 1034nm
Pulse Energy - .1J
Repetition Rate 50Hz
Pulse Duration 10^5nS
Beam Diameter 5mm

The given measurements for the control module and the laser module are exactly what this site says they should be. It does have a 220V plug on it, and the laser diode is water cooled. So, not having the pictures or any other information I can find I'm assuming they are the same laser unit. The unit does not have any other markings than what you see on the front.

I know very little about lasers. Am I right in thinking its about a 5W YAG laser in the IR band? What protective measures do you suggest? If I buy OD7+ protective eyewear will that protect my eyes?

Lastly, do I have any business playing with this or do I just need to sell it?


1436380762 79 FT0 Photo 1

1436380762 79 FT0 Photo 2

1436380762 79 FT0 Photo 3

1436380762 79 FT0 Photo 4
Back to top
...
Thu Jul 09 2015, 12:19AM
... Registered Member #56 Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
That is a nice little self contained laser, it is at least worth a try to see if it fires up.

You will want to fill up the water loop (drain whatever might currently be in there out) and make sure that it is correctly circulating before trying to fire it.

Also, the 1034nm wavelength sounds to me more like Yb:YAG than Nd:YAG (not that it really matters), and that particular laser has an interesting cavity geometry with what appears to be 3 passes through a slab shaped gain medium. This was probably related to the very long pulse duration (0.1s). Definitely in the IR, OD7 goggles rated to cover 1034nm will definitely work (just about any yag goggles will cover this band).


As to possible uses, it puts out a sizable peak power (100W) which will be able to burn through thin metal and whatnot.

ps - pretty sure that laser is actually flashlamp pumped, so there are no laser didoes in it.
Back to top
Part Scavenger
Thu Jul 09 2015, 12:53AM
Part Scavenger Registered Member #79 Joined: Thu Feb 09 2006, 11:35AM
Location: Arkansas
Posts: 673
Hey Peter!!! I was hoping you'd show up! Thanks a ton for the help. I think I'll keep it and put it on my CNC machine
Back to top

Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob

Go to:

Powered by e107 Forum System
 
Legal Information
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.