532nm Crystal Size - Picture

[AceAngel]

Just wondering if all 532nm crystal was made in such size?

Another thing, as most members knew. It has no IR filter around only the Concave lens being glued on, after the Crystal.

It must be very tough for such tiny crystal to endure high illumination from 808nm diode.

Now I see, that is how they glued the crystal to the diode and then glued the concave lens on it.

 

[ARG]

Only small pen style pointers have crystals that small. Lab lasers and handhelds that have C-mount diode use larger crystals.

 

[AceAngel]

Only small pen style pointers have crystals that small. Lab lasers and handhelds that have C-mount diode use larger crystals.

Great info, I would ask Max to see if his lasers are using C-mount diode.

By the way, is there any pics to show that - How big is the crystal for a standard handheld such as >100mw?

 

[RA_pierce]

IME modules like the ones I used to get from O-like use the same size crystals for their 12mm 5mW to 200mW modules. The only difference between them was that the 50mW and up modules used a 9mm diode rather than the 5.6mm pump.

The more expensive CNI units use much larger crystals for their >5mW 532s. Their pens use B-mount diodes and the PGL style lasers use C-mounts.
CNI crystal set approx 1.5mm^2 if I remember correctly. This was from a 50mW pointer:

 

[AceAngel]

IME modules like the ones I used to get from O-like use the same size crystals for their 12mm 5mW to 200mW modules. The only difference between them was that the 50mW and up modules used a 9mm diode rather than the 5.6mm pump.

The more expensive CNI units use much larger crystals for their >5mW 532s. Their pens use B-mount diodes and the PGL style lasers use C-mounts.
CNI crystal set approx 1.5mm^2 if I remember correctly. This was from a 50mW pointer:

Thanks bro for showing this pic.

Darn, I felt like cheated by Rayfoss.:yabbem:

But how come Rayfoss gave me the Power Certificate shown 200mw output? Probably a scam.

Can it be justify that this tiny crystal of mine able to give that 200mw output? Or it doesn't about the crystal size ...but the 808nm output???

 

[ARG]

Found this thread I think is relevant
http://laserpointerforums.com/f45/first-crystal-set-78042.html

You can get some pretty large crystals for DIY that are already aligned, just add 808nm.

Makes it a breeze to align, and fun to experiment with.

 

[AceAngel]

Found this thread I think is relevant
http://laserpointerforums.com/f45/first-crystal-set-78042.html

You can get some pretty large crystals for DIY that are already aligned, just add 808nm.

Makes it a breeze to align, and fun to experiment with.

Wow :drool:
That was big ...at least more than 1.5mm

Guess now we can just pry out the small crystal and glue this on :san:

 

[ARG]

Wow :drool:
That was big ...at least more than 1.5mm

Guess now we can just pry out the small crystal and glue this on :san:

The bigger they are the more they cost, I think that one was 250$

You can get 3mm ones for around 50$ on fleabay
Coherent DPSS Green Laser SLM Crystal Optics REO Optical YVO4 KTP 532nm YAG Part | eBay
1 ND YVO4 3x3x1 S1 HR1064 532nm HT808NM S2 AR1064NM Laser Crystal | eBay
(be careful with what you buy though, some are just the crystals to convert 808nm to 1064nm, and some are just the frequency doubling crystals to convert 1064nm to 532nm)

 

[AceAngel]

The bigger they are the more they cost, I think that one was 250$

You can get 3mm ones for around 50$ on fleabay
Coherent DPSS Green Laser SLM Crystal Optics REO Optical YVO4 KTP 532nm YAG Part | eBay
1 ND YVO4 3x3x1 S1 HR1064 532nm HT808NM S2 AR1064NM Laser Crystal | eBay
(be careful with what you buy though, some are just the crystals to convert 808nm to 1064nm, and some are just the frequency doubling crystals to convert 1064nm to 532nm)

Now I truly understand, when it comes to quality Green laser, most will go for Jetlasers or Laserbtb. Solely the good size of crystal itself already cost that much.

Thanks bro. Many members will learn from this too. :beer:

 

[pschlosser]

yes! how big is that crystal set? I want some.

 

[AceAngel]

yes! how big is that crystal set? I want some.

You refer to the above post :beer:

 

[RA_pierce]

Thanks bro for showing this pic.

Darn, I felt like cheated by Rayfoss.:yabbem:

But how come Rayfoss gave me the Power Certificate shown 200mw output? Probably a scam.

Can it be justify that this tiny crystal of mine able to give that 200mw output? Or it doesn't about the crystal size ...but the 808nm output???

The size of the crystal alone does not tell you how much power it can produce.
Some of the "200mW" and "150mW" modules I've purchased from O-like and dealextreme were very close to their advertised power. The best one I've tested measured 160-170mW after IR filter (if I remember correctly).
For some people that might be close enough... and for less than $50 it's not a bad deal.

However, I do favor the CNI units with the larger crystals. They tend to be more stable and capable of higher output. The cost is quite a bit more, though.