Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Tutorials, Help & Repairs



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 05-21-2013, 01:26 PM #1
Junior Member
 
Join Date: May 2013
Posts: 1
Rep Power: 0
RickLaser is on a distinguished road
RickLaser RickLaser is offline
Junior Member
 
Join Date: May 2013
Posts: 1
Rep Power: 0
RickLaser is on a distinguished road
Default ND:YAG rod dopping

Hi all,

i work with Co2 laser since 1980, now i want assemble a nd:yag laser, the point is, i read many posts about ways to pumping yag rod but nobody talk about dopant % of rods . At ebay u can find alot of rods with 0.6 % , 0.9% neodimium but that low dopping is used only to CW pumped with arc lamp, and arc lamp drive is so expencive. i found some posts at phisycian pages saing that to pump yag with flashlamp a hight dopant lever is needed like 3%. I wanna know if some of u guys have some REAL experience with yag pumping and if a cheap 0.9% rod work with flashlamp. Please post any experience with every kind of pumping and % dopant.


RickLaser is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 05-21-2013, 01:27 PM #2
Class 4 Laser
 
Join Date: May 2007
Location: Queensland, AU
Posts: 7,549
Rep Power: 1100
Things has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond repute
Things Things is offline
Class 4 Laser
 
Join Date: May 2007
Location: Queensland, AU
Posts: 7,549
Rep Power: 1100
Things has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond repute
Default Re: ND:YAG rod dopping

You're probably better off asking this over at Photonlexicon.com , I don't think many people here have dealt with Nd:YAG lasers.
Things is offline   Reply With Quote
Old 05-22-2013, 12:03 AM #3
Meatball's Avatar
Class 3B Laser
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 242
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Meatball Meatball is offline
Class 3B Laser
Meatball's Avatar
 
Join Date: Feb 2008
Location: Lincoln, NE
Posts: 2,989
Rep Power: 242
Meatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond reputeMeatball has a reputation beyond repute
Default Re: ND:YAG rod dopping

As a general rule, the shorter the pulse, the higher the system peak power, and the higher energy the pump is, the lower the concentration is what is typically seen.

You must choose this dopant level based on what you are trying to optimize - what are your needs? What is your priority?

For most q-switched systems, you'll see rods from .5% to 1.5% depending on pump pulse length. For no q-switch or quasi CW (not recommended with YAG), lower concentrations will be typically found. Something from .05% to .5%.

Let it depend on this following parameters:

beam beam diameter after output coupler
rod length
pumping scheme (diode, lamp)
pump energy/power
pump arrangement - side pumped? End pumped? Q-switched? Pumping chamber?
if q - switched, passively? Opto-acoustically?
pump pulse duration
YAG beam pulse length
duty cycle

But honestly, if you're just trying to muck around with a rod to get something to lase, you'll probably seen something interesting out of it before you begin to miss your chance to change your mind. You'll get something out of a proper rod. You should instead find a nice rod, and design your system around it. Optimize your laser towards whatever the rod can offer you.
__________________
FIAT LUX

(\__/)
(='.'=)
(")_(")
Meatball is offline   Reply With Quote
Reply

Tags
yag dopant concentration





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 10:29 AM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC