AixiZ 50 mw module

[laserfreak3d]

AixiZ 50 mw 532 nm module

The Specs

Output Power: 50 mW
Wavelength: 532 nm
Spot Mode    TEM00
Operating Voltage 90 -230 volt ac
Operating Current Diode current 350 mA
Storage Temp -40 degree to 80 degree Celsius
Case Material Aluminium
Beam Divergence < 1.2 mrad
Beam Diameter at Aperture 2.3 mm
Life: About 5000 hrs
Operating temp: 10-50 degrees C
Warm up time: 15 min

First impressions. (Laser head)
First off in my opinion I love this laser head.
I’ve owned and repaired  several of these and there great.
The laser head provides enough cooling for the diode and KTP assembly.
The C-mount diode is mounted on a copper plug that slides into the back of the module.
And the entire head has several mounting holes on the bottom side.
According the the data sheet this module has fixed focus but this is not the case.
Focus can be adjusted to infinity by turning the front lens of the module.
Optionally a fan can be used to provide more cooling to the module in harsh conditions.
Beam specs seem to be around 1.2 mrad
And the beam diameter is 2.3 mm at the aperture
Sadly no ir filter was fitted in this head.
But i dont consider this as a big negative

First impressions. (Driver)
The Driver accepts any voltage between 90 and 240 volts
The current for this specific diode was set at 355 mA.
The blanking input can handle ttl input only up to 30khz.
Also it has a soft start feature.
So don’t be worried when your laser does not turn on immediately.
Beam quality is great no distortions or reflections.
Focus can be changed by turning the lens on the front of the module.
Now for the output power
The module is rated as 50 mw 532 nm
My first measurement just after power on peaked at 82 mw.  
After 15 minutes I took a other measurement this one came in at 92 mw
After 1 hour I took a other measurement at this point the module was about 28 degrees.
And was doing about 101 mw so that’s a free 50 mw that’s awesome  

All power readings where done using a coherent lasercheck set to 532nm
and using a external ir filter

Overall this module seems to perform very well.
Its output is stable and free of distortions and reflections.
No modehopping was seen during the testing period.
Ive seen several of these modules and most of them would do a lot more then 50 mw

The entire module costs 175 dollars.
But Aixiz also has some used modules available for 65 dollars
So the price is also very reasonable
Shipping to Europe took about 1 week
So overall I would recommend this module to anyone
Who wants to build a laser projector on a budget.
Also the support and customer service by Aixiz is great.
Chuck is always glad to help with any problems or questions.
And will always do his best to provide the best service to his customers.
Of course this is only mend as my personal opinion and is based on previous contact with him

Positive points.
1. It’s easy to mount.
2. it’s not to big but provides more then enough cooling for the diode
3. And it’s easy to replace the diode in case it ever dies
Negative  point (only one)
1. No ir  filter was fitted

 

[Benm]

Wow.. that's nicely overpowered!

It's intereting that it makes such a big rise in power after being on for a full hour - i wonder what's up with that since you'd think temperature would be stable after running that long.

 

[laserfreak3d]

Wow.. that's nicely overpowered!

It's intereting that it makes such a big rise in power after being on for a full hour - i wonder what's up with that since you'd think temperature would be stable after running that long.

yea thats thru im doing a other pwr reading tonight

 

[ElektroFreak]

Great review and power vs. time chart! +1..

I've been a fan of these units for some time. I own 4 of the "used" $65 units and they all perform identically to the one you review. They're a great deal for the price. In fact, the only difference I've seen between some of the $175 units and the $65 units is a slightly different driver..

@Benm.. these units aren't TEC stabilized, so there will be frequent, sometimes fairly large fluctuations in output power. These fluctuations may seem random and may occur well after the initial "warmup" is complete.. They're still quite suitable for laser show use since these fluctuations are quite difficult to notice without taking measurements on a meter.

 

[laserfreak3d]

yea these are great modules most of them are over powerd there cheap and very stable eventhough the dont have tec cooling.
And aixiz service is always great

 

[Benm]

@Benm.. these units aren't TEC stabilized, so there will be frequent, sometimes fairly large fluctuations in output power. These fluctuations may seem random and may occur well after the initial "warmup" is complete.. They're still quite suitable for laser show use since these fluctuations are quite difficult to notice without taking measurements on a meter.

I know.. but i was just wondering why the change occurs after more than an hour of runtime. I'd expect the temperature to be stable after that, so it should cause large changes as it does, for example, in the first 10 minutes on some units. Ofcourse it could just be the wind, the aircon kicking in or some other external factor.

For laser shows its probably just fine, even a factor 2 difference in power isnt easy to see if it takes 10 minutes to happen - unless you're mixing colors and the ratios are suddenly quite a bit off.