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

Green laser power drop after a drop

alessnilsen

alessnilsen

0
Joined
May 20, 2013
Messages
358
Points
28
Hi!

Yesterday I unfortunately dropped my 500mW laser pointer head (I was removing the battery) on the ground from a distance of 1m. Now, instead of 500mW, their output power is not more than 3mW (aproximately).

I already checked the lenses and the crystal assembly and everything feels ok.

My laser have warranty of 90 days, I will return it to the warranty but I wanna know, what might have happened with my laser?

Thanks!

:cryyy: :cryyy: :cryyy:
 





hwang21

hwang21

0
Joined
Mar 27, 2013
Messages
2,416
Points
63
I highly doubt it was anywhere close to 500mW to start with, but you probably knocked your crystals out of alignment. Refund is the best route, get a quality laser
 
Blaster

Blaster

0
Joined
Jul 1, 2013
Messages
1,169
Points
0
No your not going to get the words quality and laser together for $100 dollars especially 100mW plus
 
alessnilsen

alessnilsen

0
Joined
May 20, 2013
Messages
358
Points
28
Yes, I know about the quality vs. power vs. price.

I have no more money to spend with lasers :( so I will return it to the warranty anyway.

I did a test with the crystals, I turn the laser on and with a pin, nudged the crystals and the power output growed up a bit, confirming misalignment of the crystals :cryyy:
 
Leodahsan

Leodahsan

0
Joined
Aug 7, 2010
Messages
2,086
Points
0
Beware with the IR light coming out from the diode.

Here you can have some info about DPSS, in case the manufacturer don't want to refund you...

Here

The first pic (from Sam's LSRFAQ) makes me think that proper rotation is needed for the power to increase...
 
alessnilsen

alessnilsen

0
Joined
May 20, 2013
Messages
358
Points
28
Yes, have a lot of IR light going out of the diode, I look it with my cell phone camera.

I'll read the link you said. When I have more information I'll keep you updated.

Thanks.
 
alessnilsen

alessnilsen

0
Joined
May 20, 2013
Messages
358
Points
28
A little question. How I can protect my laser from being dropped? Maybe some silicone layer, any suggestion?
 
alessnilsen

alessnilsen

0
Joined
May 20, 2013
Messages
358
Points
28
What is TEM00 and TEM01? I think the misalignment happened because I let it drop, this laser always used to be cold, including the laser/crystals/lenses assembly.
 
hwang21

hwang21

0
Joined
Mar 27, 2013
Messages
2,416
Points
63
I doubt it's a TEM00-TEM01 problem... that's when the laser dot goes from one nice circle to two close circles side by side. Search wikipedia for transverse mode (TM) and you'll see pics of what I mean for both TM and TEM.

If you've dropped the laser, it is almost certainly a misalignment issue
 
Livinloud

Livinloud

0
Joined
Feb 21, 2013
Messages
5,013
Points
0
Heard of a wrist strap? Use it and you cant drop your laser ;) I have a 128mW 532nm laser for sale for $60 shipped in the USA. International would obviously be more. PM me if you are interested
 
hwang21

hwang21

0
Joined
Mar 27, 2013
Messages
2,416
Points
63
Just three years ago... a 30mW green would've cost $120... wow times have flown by :beer: GL with your sales livinloud
 
Livinloud

Livinloud

0
Joined
Feb 21, 2013
Messages
5,013
Points
0
hwang21 said:
Just three years ago... a 30mW green would've cost $120... wow times have flown by :beer: GL with your sales livinloud
Click to expand...

Thanks, did a price drop and every laser has someone interested! Fingers crossed they sell!!!! Need to pay some bills! Dang me and stupid labor day sales! My CC hated me that weekend and now I hate me since the bill arrived :eek:

OP good luck with the warranty and getting a new laser. Please let us know what you end up with and if you want my 128mW 532nm send me a PM in case the guy interested drops out
 
You must log in or register to reply here.




Top