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

de canned 635nm diode! (adult language)

cheech226

cheech226

0
Joined
Jun 25, 2011
Messages
1,481
Points
63
thanks dave! i've run across de-caning in a few threads and never knew Why. so if i were designing ld's my decision on whether to enclose it or not would be based on how well i want to protect the innards?
 





daguin

daguin

0
Joined
Mar 29, 2008
Messages
15,989
Points
113
cheech226 said:
thanks dave! i've run across de-caning in a few threads and never knew Why. so if i were designing ld's my decision on whether to enclose it or not would be based on how well i want to protect the innards?
Click to expand...

That is one reason.

Also, some of the die strata are made of materials that are hygroscopic.
The diodes are generally filled with an inert gas to eliminate moisture from surrounding the die

Finally, an exposed die is vulnerable to "stuff" settling on the face of the die

Peace,
dave
 
Last edited:
S

steve-o

0
Joined
Nov 29, 2006
Messages
12
Points
0
kiyoukan said:
Went back and did some reading yeah i must have read wrong or my memory is going... ohh well still cool pics ill edit the op later.
steve-o from PL posted this link
Mitsubishi 635-638nm 500mw CW Laser Diode DIY/1pcs/pck | eBay
So i sent them a message.
i hope they have them in stock, when they do im going to grab up as many as my pockets can afford.
Click to expand...
lol I got that link from here a few months ago .. just been hanging on to it. I got a response from a girl there a while back but still waiting now.
re: decanning- another reason to decan a LD is to install a micro-lens very close to the emitter.
 
Last edited:
LaserCo

LaserCo

0
Joined
Sep 25, 2007
Messages
434
Points
28
I was running my 300mw at 946mA thru one of Moh's drivers/C6's, I was outside with it in the cold & taking photoes, ran it for probably 4 minutes, it was not even warm to the touch, before I stepped out I had put it in the freezer for a bit :)

upon returning inside I fired her up again and the beam went from bright to dim, not real dim but dimmer :) I tried it again in around ten minutes and the same thing happened.


Add that bit of info into the recipe!
 
kiyoukan

kiyoukan

0
Joined
Oct 24, 2009
Messages
2,555
Points
48
diode is near death half the emitter was damaged when the window cracked.
 
Benm

Benm

0
Joined
Aug 16, 2007
Messages
7,896
Points
113
daguin said:
If you start pushing the pieces around in there, you run the very real risk of breaking the tiny wires connected to the die
Click to expand...

Or scrape them against the output mirror facet of the diode, rendering it useless the next time you power it up.

Also, the pieces of a broken window tend to be larger than the hole in the case, so getting them out without removing the entire can would be very tricky.
 
You must log in or register to reply here.




Top