Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Nd:YAG crystal dont work

E

EXO

0
Joined
Jul 13, 2011
Messages
31
Points
0
Hi,

i have green laser pointer.One day they stop to work.Ir diode was dead.I replace with new IR diode from 16x DVD burner.But they wont work.I only see dimmed red light on output lens.Where is problem?In IR diode or in Nd:YAG crystal.
 
Last edited:





qumefox

qumefox

0
Joined
Mar 26, 2010
Messages
3,220
Points
0
Actually your gain crystal is probably ND:YVO4, not ND:YAG. But regardless. It still won't work with a 780nm IR diode you find out of CD/DVD etc players. You need 808nm for the process to work.
 
jimdt7

jimdt7

0
Joined
Feb 5, 2011
Messages
1,893
Points
48
^^^^^ The wavelenght must be the same with the old diode.

Jim
 
E

EXO

0
Joined
Jul 13, 2011
Messages
31
Points
0
Thanks for the answer.
What will be if I use red laser diode form dvd burner instead IR diode.Which color will be on output of crystal.
 
Blord

Blord

0
Joined
Dec 24, 2007
Messages
5,356
Points
0
No it won't work. You need 808nm diode for the green lasers.
 
You must log in or register to reply here.




Top