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ArcticMyst Security by Avery

Laser Century 50-150 mw 532nm dpss

Joined
May 24, 2007
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Laser Century 50-150 mw 532nm dpss

grn10.jpg


The Specs :

Model GL532T-050
Output Power 50mW
Output Wavelength 532nm
Spectral Linewidth 0.1nm
Beam Mode TEM00
Operating Mode CW
Beam Divergence, Full Angle 1.5 ± 0.2mrad
Beam Diameter @ Aperture 1.0 ± 0.2mm
Power Stability (T= 25[ch8451]) <±5% (over 2 hours)
Beam Pointing Stability <0.05mrad
Residual IR <0.01%
Ellipticity >90%
Operating Temperature, Case 10[ch8451] ~ 35[ch8451]
Warm Up Time 10 minutes
Expected Operation Lifetime 10000 hours
Power Supply PS-500
Input Voltage 85~240VAC, 50/60Hz
Modulation 10KHz TTL Modulation
Dimensions of Laser Head 102 × 39 × 39mm
Weight of Laser Head 0.3Kg
Dimensions of Power Supply 175 × 75 × 40mm
Weight of Power Supply 0.5Kg
Warranty 12 months

First impressions. (Laser head)

grnmod.jpg


grnmod2.jpg


This is your generic style laserhead.

Fan on the back side cooling the heat sink that holds the peltier element and the diode.

grnfan.jpg


The laser head looks very clean and was very well machined.
No sharp edges or unpainted metal.
The Dimensions of the head are 102 × 39 × 39mm

dim.jpg


Also something I noted in the specs.
Is that Lasercentury actually makes a note of the residual ir coming from the laser.
This says something about the quality of the laser and ir filter.
And the company being very precise with the specs.
Also I was informed by Lasercentury that this test model does 70mw
And that was exactly what it is doing after warm-up.

First impressions. (Driver)

grnpwron.jpg


It’s kind of big (175 × 75 × 40mm ) for a dpss driver these days.
But keep in mind the power supply is integrated into the driver
The Driver accepts any voltage between 90 and 240 volts.
The driver has its own power switch.
The blanking input can handle up to 20Khz TTL
However analog modulation is optional.
Also it has a soft start feature.
So don’t be worried when your laser does not turn on immediately.
The laser head can be disconnected from the driver.

grncon.jpg


A zenner diode is inside the laser head.
prevents the diode from being damaged by esd when disconnected .
Beam quality is great no distortions or reflections.
Focus can’t be changed externally on this module.
However this can be done when opening the laser head.
Now for the output power
The module is rated at 50 mw 532 nm.
My first measurement 5 seconds after power on peaked at 51.5 mw.
After 15 minutes I took an other measurement this one came in at 73 mw
After 1 hour I took a other measurement at this point the module was about 23 degrees.
And was doing about 78.8 mw so that’s a free 27 mw. :p

grnpwr.jpg


Overall this module seems to perform very well.
Its output is stable and free of distortions and reflections
All of the specs are spot on for this module.
Beam quality is really great and the beam is very tight.
According to my calculation its about 1.2 mrad.
This was also what was noted on the spec sheet for my specific model laser
The beam is very visible even without any smoke in the room.
i was unable to take a good picture of the beam output.
Because the brightness overwelmes my camera.
But its beter then that of the aixiz green module
And as usual all the power readings where done with the Coherent power check set to 532 nm.

Positive points.
1. Small laser head footprint and dimensions
2. No big heat sink and additional fans needed.
3. High quality infrared BG39 filter fitted.
4. Laser head is removable.
5. High expected lifetime (so no overdriven pump diode)
Negative point
1. Could not come up with any really

For more info check

David Wang
Shanghai Laser & Optics Century
www.lasercentury.com / www.lasercentury.net
david@lasercentury.com
Tel: 0086-21-34624391
Fax: 0086-21-34624392
 









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