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 > Science & Lasers



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



Reply
 
LinkBack Thread Tools Display Modes
Old 12-16-2011, 03:37 AM #17
Junior Member
 
Join Date: Dec 2011
Posts: 3
Rep Power: 0
isleofnonconformity is a jewel in the roughisleofnonconformity is a jewel in the roughisleofnonconformity is a jewel in the rough
isleofnonconformity isleofnonconformity is offline
Junior Member
 
Join Date: Dec 2011
Posts: 3
Rep Power: 0
isleofnonconformity is a jewel in the roughisleofnonconformity is a jewel in the roughisleofnonconformity is a jewel in the rough
Default Re: Grow your own crystals!

I have also successfully frequency doubled with a home-grown KDP crystal with a titanium-sapphire pulsed laser (800mW).

Here is a blog I made about growing the crystal and getting the setup to work:



Last edited by isleofnonconformity; 12-16-2011 at 03:40 AM.
isleofnonconformity is offline   Reply With Quote







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







Old 12-16-2011, 05:17 AM #18
Wolfman29's Avatar
Class 3B Laser
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Wolfman29 Wolfman29 is offline
Class 3B Laser
Wolfman29's Avatar
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Default Re: Grow your own crystals!

Hmm. Fascinating work isle. However, you mention that 500mW is the least power necessary to see frequency doubling... how do you explain 5mW green lasers then? They are clearly powered by less than 200mW of 808nm light, which itself is probably dropped slightly by the fact that they are simply pumping vanadate?
Wolfman29 is offline   Reply With Quote
Old 12-16-2011, 05:18 AM #19
MarioMaster's Avatar
Class 3B Laser
 
Join Date: Jul 2007
Location: Allentown, PA
Posts: 3,621
Rep Power: 346
MarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond repute
Send a message via AIM to MarioMaster
MarioMaster MarioMaster is offline
Class 3B Laser
MarioMaster's Avatar
 
Join Date: Jul 2007
Location: Allentown, PA
Posts: 3,621
Rep Power: 346
MarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond reputeMarioMaster has a reputation beyond repute
Send a message via AIM to MarioMaster
Default Re: Grow your own crystals!

Nice necropost, this was an interesting thread

Your 500mW 1064 likely didn't have enough juice to double to green since you don't have any kind of cavity mirrors or coatings on the crystal. The guy in the original page was using a pulsed Nd:YAG which probably had pulse powers in the KW range.
__________________
ILT 5500KR krypton only air cooled ion 100mW 647.1nm | ILT 5500AR argon only air cooled ion >300mW multiline
Omnichrome 643 air cooled Ar/Kr ion 10mW 676.4nm 647.1nm 568.2nm 488nm 476.2nm (high hours)
Spectra Physics 127 >30mW 632.8nm HeNe | Uniphase 1.5mW 543.5nm GreeNe
Coherent Innova 90 argon ion water cooled ??W (got plasma, alignment in progress)
Coherent 60W 830nm water cooled diode brick | Shenhui Laser 40W 10600nm water cooled CO2

(9:03:50 PM) Picasso: the best guys i saw ever at burning man was two dudes dressed as all green army men shooting pants at naked guys

Last edited by MarioMaster; 12-16-2011 at 05:21 AM.
MarioMaster is offline   Reply With Quote
Old 12-16-2011, 12:47 PM #20
ekeup's Avatar
Class 1 Laser
 
Join Date: Dec 2011
Location: Jonesborough, TN
Posts: 93
Rep Power: 15
ekeup is a splendid one to beholdekeup is a splendid one to beholdekeup is a splendid one to beholdekeup is a splendid one to beholdekeup is a splendid one to beholdekeup is a splendid one to beholdekeup is a splendid one to beholdekeup is a splendid one to behold
ekeup ekeup is offline
Class 1 Laser
ekeup's Avatar
 
Join Date: Dec 2011
Location: Jonesborough, TN
Posts: 93
Rep Power: 15
ekeup is a splendid one to beholdekeup is a splendid one to beholdekeup is a splendid one to beholdekeup is a splendid one to beholdekeup is a splendid one to beholdekeup is a splendid one to beholdekeup is a splendid one to beholdekeup is a splendid one to behold
Default Re: Grow your own crystals!

Quote:
Originally Posted by isleofnonconformity View Post
I have also successfully frequency doubled with a home-grown KDP crystal with a titanium-sapphire pulsed laser (800mW).

Here is a blog I made about growing the crystal and getting the setup to work:
Very interesting...

btw... awesome dream journal...
It's too rare for people to have such in-depth dreams they are able to recall.
I *think* I remember most of my dreams (or at least I remember 3-4 each night)
ekeup is offline   Reply With Quote
Old 04-20-2012, 03:51 PM #21
Hiemal's Avatar
Class 3R Laser
 
Join Date: Dec 2011
Location: Houston, TX
Posts: 1,449
Rep Power: 311
Hiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond repute
Hiemal Hiemal is offline
Class 3R Laser
Hiemal's Avatar
 
Join Date: Dec 2011
Location: Houston, TX
Posts: 1,449
Rep Power: 311
Hiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond repute
Default Re: Grow your own crystals!

I know this is a rather old thread, but it's really interesting to read.

Would you be able to double to other light colors as well, like put in 808 nm and get 404 nm out?

I think it's awesome you can grow your own DPSS laser components...
__________________
formerly Le Quack


Drivers and Stuff

Superboost Driver (5.5+ amp capability) End all for Boosting!

MicroSized Boost Driver

Low Dropout Linear Driver


Any electronics related questions?

Send me a PM and I'll try my best to answer!
Hiemal is offline   Reply With Quote
Old 04-20-2012, 07:52 PM #22
Blord's Avatar
Class 4 Laser
 
Join Date: Dec 2007
Location: Belgium
Posts: 5,368
Rep Power: 870
Blord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond repute
Blord Blord is offline
Class 4 Laser
Blord's Avatar
 
Join Date: Dec 2007
Location: Belgium
Posts: 5,368
Rep Power: 870
Blord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond reputeBlord has a reputation beyond repute
Default Re: Grow your own crystals!

DPSS doesn't worked that way.
You need 1064nm wavelength to get 532nm green.
__________________
405nm 400mW S06J C6
445nm 3W Big Boy, 2.8W Dominator, 2.4W Steel Laser
450nm 240mW PL450 C6
473nm 100mW PGL-III-C-473
520nm 55mW Skylaser PL520
532nm 821mW Skylaser PL532, 133mW Jetlasers Ti-B
589nm 100mW PGL-III-C-589
635nm 70mW Sanyo SenTorch
638nm 175mW Ehgemus, 1W Rook
660nm 1216mW Skylaser PL660, 263mW LPC826 C6
685nm 33mW Fujitsu FLD6A2TK C6
780nm 150mW Dilda
808nm 640mW C6

I have copper 501B and Dominator lasers for sale !

Last edited by Blord; 04-20-2012 at 07:52 PM.
Blord is offline   Reply With Quote
Old 04-20-2012, 08:12 PM #23
Hiemal's Avatar
Class 3R Laser
 
Join Date: Dec 2011
Location: Houston, TX
Posts: 1,449
Rep Power: 311
Hiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond repute
Hiemal Hiemal is offline
Class 3R Laser
Hiemal's Avatar
 
Join Date: Dec 2011
Location: Houston, TX
Posts: 1,449
Rep Power: 311
Hiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond repute
Default Re: Grow your own crystals!

Quote:
Originally Posted by Blord View Post
DPSS doesn't worked that way.
You need 1064nm wavelength to get 532nm green.
I know how DPSS works... but wouldn't it be the matter of just changing the coatings on the crystal?
__________________
formerly Le Quack


Drivers and Stuff

Superboost Driver (5.5+ amp capability) End all for Boosting!

MicroSized Boost Driver

Low Dropout Linear Driver


Any electronics related questions?

Send me a PM and I'll try my best to answer!
Hiemal is offline   Reply With Quote
Old 04-20-2012, 10:12 PM #24
Class 4 Laser
 
Join Date: Nov 2008
Posts: 5,728
Rep Power: 547
ElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond repute
ElektroFreak ElektroFreak is offline
Class 4 Laser
 
Join Date: Nov 2008
Posts: 5,728
Rep Power: 547
ElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond reputeElektroFreak has a reputation beyond repute
Default Re: Grow your own crystals!

Not all crystals work at all wavelengths. KTP, for example, isn't good below 500nm, so for doubling to 473nm you need something else. KTP would work well for doubling to green, yellow or red though. IIRC KDP shares many characteristics with KTP.
__________________
Laser Resources (for n00bs and veterans alike!)

Sam's Laser FAQ (The Laser Bible)

http://www.repairfaq.org/sam/laserfaq.htm

RP Photonics Encyclopedia of Laser Physics and Technology

http://www.rp-photonics.com/encyclopedia.html

ULTIMATE DIY PROJECTOR REFERENCE

http://nqlasers.com/scannerreference...itle=Main_Page

SUCCESS is the best revenge.

Last edited by ElektroFreak; 04-20-2012 at 10:13 PM.
ElektroFreak is offline   Reply With Quote
Old 04-21-2012, 07:07 PM #25
Junior Member
 
Join Date: Dec 2011
Posts: 3
Rep Power: 0
isleofnonconformity is a jewel in the roughisleofnonconformity is a jewel in the roughisleofnonconformity is a jewel in the rough
isleofnonconformity isleofnonconformity is offline
Junior Member
 
Join Date: Dec 2011
Posts: 3
Rep Power: 0
isleofnonconformity is a jewel in the roughisleofnonconformity is a jewel in the roughisleofnonconformity is a jewel in the rough
Default Re: Grow your own crystals!

Le Quack:
If you look at my webpage, you will notice that I doubled with a Ti-Sapph laser, which is a pulsed 795nm laser. Therefore, you should be able to grow your own KDP crystal and double it in a 808nm laser if you have a powerful enough laser.

Wolfman 29:

The best reference for you to look at is reference 9 in my full report.

Electro-optic, linear, and nonlinear
optical properties of KDP and its
isomorphs
D. Eimerl

This paper discusses the theoretical limits of frequency doubling with different types of KDP-like crystals. He shows the limit for type 1 frequency doubling for KDP at 1064nm to be an input power around 500mW (Figure 30). Different isomorphs have lower treshholds and type 2 frequency doubling also has lower threshholds.

If you read Wikipedia about Green Laser Pointers, you will find them say that the green laser pointers have a pump laser at 808nm between 100-300mW. The threshhold for this case and type 1 frequency doubling is 300mW and type 2 frequency doubling is 40mW. They could also be using KDP*, a purer form of KDP, which can also decrease that threshhold.

Hope that helps.
isleofnonconformity is offline   Reply With Quote
Old 04-21-2012, 07:08 PM #26
Junior Member
 
Join Date: Dec 2011
Posts: 3
Rep Power: 0
isleofnonconformity is a jewel in the roughisleofnonconformity is a jewel in the roughisleofnonconformity is a jewel in the rough
isleofnonconformity isleofnonconformity is offline
Junior Member
 
Join Date: Dec 2011
Posts: 3
Rep Power: 0
isleofnonconformity is a jewel in the roughisleofnonconformity is a jewel in the roughisleofnonconformity is a jewel in the rough
Default Re: Grow your own crystals!

I just posted a reply to your question. Sorry I didn't notice it until now!
isleofnonconformity is offline   Reply With Quote
Old 03-19-2014, 03:33 AM #27
jeffreythe00's Avatar
Class 3B Laser
 
Join Date: Jan 2010
Location: USA, Plains, Pennsylvania
Posts: 2,528
Rep Power: 781
jeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond repute
Send a message via Skype™ to jeffreythe00
jeffreythe00 jeffreythe00 is offline
Class 3B Laser
jeffreythe00's Avatar
 
Join Date: Jan 2010
Location: USA, Plains, Pennsylvania
Posts: 2,528
Rep Power: 781
jeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond reputejeffreythe00 has a reputation beyond repute
Send a message via Skype™ to jeffreythe00
Default Re: Grow your own crystals!

Necropost!

Just wondering, has anyone attempted to grow their own KTP yet?
__________________
Want to be a part of the member map? Pm me!

Personal lasers
532nm 130mW Spartan
532nm 160mW Wicked lasers EVO
532nm 130mW Wicked Lasers Executive Pro: Nexus

520nm 1.4W Ehgemus custom
660nm >78mW Newwish
635nm 500mW 501B
445nm >1W 1st Gen Kryton Groove
445nm >2.7W DeadEYmo Custom
473nm 25mW re-tuned B&W Tek Labby
Wicked Lasers Torch
Radiant x4 LPM
jeffreythe00 is offline   Reply With Quote
Old 03-19-2014, 04:02 AM #28
crazyspaz's Avatar
Class 3B Laser
 
Join Date: Jul 2012
Location: IN, United States
Posts: 2,864
Rep Power: 1313
crazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond repute
crazyspaz crazyspaz is offline
Class 3B Laser
crazyspaz's Avatar
 
Join Date: Jul 2012
Location: IN, United States
Posts: 2,864
Rep Power: 1313
crazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond reputecrazyspaz has a reputation beyond repute
Default Re: Grow your own crystals!

And a (for once ) welcomed necro post at that...I would LOVE to try this. this only cost a bit... I have little money, but I think I could spare 10$. I am super busy this week though, so it won't happen until next week, if i decide to try it.


Now, to grow YAG is the next challenge
^not happening. Look it up, its not something we will ever be able to do without some expensive lab equipment!
crazyspaz is offline   Reply With Quote
Old 03-19-2014, 09:31 PM #29
cheech226's Avatar
Class 3R Laser
 
Join Date: Jun 2011
Location: across the river from the big easy
Posts: 1,485
Rep Power: 1051
cheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond repute
cheech226 cheech226 is offline
Class 3R Laser
cheech226's Avatar
 
Join Date: Jun 2011
Location: across the river from the big easy
Posts: 1,485
Rep Power: 1051
cheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond reputecheech226 has a reputation beyond repute
Default Re: Grow your own crystals!

THAT is what ktp is? wow!
__________________
i have fond memories of owning
10 hene tubes 2 argon ion units and lots of diode and dpss lasers in these wavelengths:
405,445,450,458,473,488,532,543,594,612,632,635,650,685,780
I'm rebuilding my collection:
Skyray 405 12x
kryton groove gitd 445
B&W Tek 473 lab laser
JDSU 2214-40 multiline argon ion
Osram pl520 in an sh-032 host
Skylaser HL532-300
543 HeNe
632 HeNe x3
Opnext 638 single mode in c6 host
Rayfoss 650 150mW
Laserbee II Deluxe lpm w/ Peregrine
Laissez les bons temps rouler!
cheech226 is offline   Reply With Quote
Reply





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 11:52 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