UNKNOWN-TYPE HIGH-POWERED
GREEN LASER MODULE

Unknown-type High-Powered Green Laser Module, retail $(???)
Manufactured by (Unknown)
Last updated 03-22-11




This is a green DPSS (diode pumped solid state) laser module that outputs just over 55mW of laser radiation at 532nm in the green portion of the visible spectrum.

It comes in a very handsome glossy black metal body with a shiny gold-colored tailcap, bezel, accent band encircling the barrel not too far back from the bezel, and pocket clip -- this laser is (in my opinion anyway) very classy and you need not be ashamed to whip it out even in the presence of the snootiest person (valet, waiter, maître d', etc.) around -- as long as you don't turn around and hose them down with it anyway.


SIZE



Feed the laser module two AAA cells (see below), and then you'll be ready to rock.

To use the laser module, just aim it at something you wish to point out, and press & hold down the button on the barrel for as long as you need the laser spot. Release the button to turn the laser module back off. Yes, it really is as easy as that.

The laser module comes with a pocket clip, already attached. You know what it's for.
If not, slip the laser module into a shirt or pants pocket, and slide the clip over the outside of the fabric of the pocket when the module is being inserted into the pocket.



To change the batteries in your green laser module, unscrew and remove the tailcap, throw it in the {vulgar term for feces}bowl, yank that silver handle on the cistern down, and flush it away...O WAIT!!! YOU'LL NEED THAT!!! So just set it aside instead.

Tip the two used AAA cells out of the barrel and into your hand, and dispose of, recycle, or recharge them as you see fit.

Insert two new AAA cells into the barrel, flat-end (-) negative first. This is the opposite of how batteries are installed in most flashlights, so please pay attention to polarity here.

Screw the tailcap back on, and be done with it.
Aren't you glad you didn't flush away that tailcap now?

Current usage measures 517mA on AAA cells of unknown prior use.



This is a laser module, not a flashlight. So I won't throw it against the wall, stomp on it, try to drown it in the toilet bowl, run over it, swing it against a concrete driveway, or inflict upon it punishments that flashlights may have inflicted upon them. So this section of the laser's web page will seem a bit more bare than this section of the web page on a page about a flashlight.
Lasers are meant to be loved, not punished.

Green diode lasers are a lot different than those common red lasers you see all the time.

In a 640nm red laser module, there's a red-emitting diode and a lens to collimate (focus) the beam.

In a 532nm green laser (module or larger size), there's a BIG infrared laser diode that generates laser light at 808nm, this is fired into a crystal containing the rare-earth element "neodymium". This crystal takes the 808nm infrared light and lases at 1064nm (yes, deeper in the infrared!). This 1064nm laser light comes out of the NdYV04 (neodymium yttrium vanadium oxide) crystal and is then shot into a second crystal (containing potassium, titanium, & phosphorus, usually called KTP) that doubles the frequency to 532nm - the bright green color you see. This light is then collimated (focused) by a lens and emerges out the laser's "business end". Just before the lens, there's a filter that removes any stray IR (infrared) rays from the pump diode and the neodymium crystal. You don't want that stuff in your green beam, trust me. :-)

This is why green diode lasers are so much more expensive than red ones. Lots of itty bitty parts, and they all need to be aligned by hand. If the polarisation is "off", one or both crystals need to be turned. With red diode lasers, you just slap in the diode and slap a lens in front of it.

VERY IMPORTANT!!! This laser is NOT a toy, and you MUST NOT shine it into your eyes, other people's eyes, pets' eyes, for that matter, the eyes of any person or animal you encounter. Eye damage can occur faster than the blink reflex can protect them, regardless of what species' eyes you irradiate with this laser. So just don't do it.

And for Christ sakes (and for heaven sakes and for Pete sakes and for your sakes too) do not shine this laser at any vehicle, whether ground-based like a motorcycle, car, or truck, or air-based like a helicopter, airplane, or jet. And if you shoot it at a person in the dark and he turns out to be a police officer, he may think he's being targeted, unholster (whip out) his gun, and hose you down with it.
This is a CDRH Class IIIB laser device. Treat it with respect, and it'll treat you with respect.

This laser is not water-resistant, so please be extra careful when using it around sinks, tubs, toilets, fishtanks, pet water bowls, or other places where water or water-like liquids might be found. And you'll probably want to cover it up or otherwise get rid of it (such as by putting it in a pocket or bag) if you need to carry it in rainy or snowy weather.

Since this is a high powered laser module, I would recommend a duty cycle of no longer than 50%. That is, one minute on, and at least one minute off to allow the "guts" inside to cool down. This is my own recommendation, based upon past experience with high-powered green DPSS lasers in pen-style bodies.





Beam photograph at ~12".
Beam is not white like this photograph makes it appear.

Beam is also a lot smaller than it appears; the beam image bloomed significantly when photographed despite my having taken this photograph during the daylight hours.

Power output measures 55.185mW on a Sper Scientific Pocket Laser Power Meter # 840011; using AAA cells of unknown prior usage.



Beam photograph at ~15'.
Beam is not white like this photograph makes it appear.

Those colored graphics toward the left are my "Viva Piņata" posters, and that clock on the right that looks like a gigantic wristwatch is my Infinity Optics Clock.
You may also be able to see one of my SpongeBob SquarePants plush (Squidward Tentacles) and a Digimon plush (Greymon). Normally, a Patrick Star plush (from SpongeBob) would be hanging next to Squidward, but he was down here at the spectrometer for a test of his own.


Spectrographic analysis
Spectrographic analysis of this laser.


Spectrographic analysis
Spectrographic analysis of this laser; spectrometer's response narrowed to a band between 800nm and 820nm to check for the effectiveness of the IR filter -- which appears to be 100% effective.

USB2000 spectrometer graciously donated by P.L.


ProMetric analysis
Beam cross-sectional analysis.
Image made using the ProMetric System by Radiant Imaging.






TEST NOTES:
Test unit was discovered late on the morning of 03-08-11 (or "08 Mar 2011" if you prefer) while looking for another product requiring spectroscopy.


UPDATE 03-22-11:
After some rather serious investigation, I have come to the startling conclusion that this laser may in fact be a Wicked Lasers Phoenix 80mW Green Laser.


PROS:
Very bright green laser beam.
More powerful than most other "pointer" style lasers.
Nice looking black case with gold trim.
Feels good in the hand; is also rather hefty.
No beam artifacts - none that I've been able to detect anyway.
Uses batteries that are relatively inexpensive and readily available.


CONS:
Not waterproof or submersible - but most modules aren't. Will not figure into my rating.
Consumes a lot of power, so you'll be going through batteries if you use it a lot.
Can't use it in public without a variance.
More delicate than directly-injected diode laser pointers/modules.


    MANUFACTURER: Unknown
    PRODUCT TYPE: Pen-style laser module
    LAMP TYPE: DPSS diode laser/NdYVO4/KTP crystals
    No. OF LAMPS: 1
    BEAM TYPE: Very narrow spot
    SWITCH TYPE: Pushbutton momentary on/off on barrel
    CASE MATERIAL: Metal
    BEZEL: Metal; has aperture (hole) for laser beam to emerge
    BATTERY: 2x AAA cells
    CURRENT CONSUMPTION: 517mA
    WATER- AND URANATION-RESISTANT: Very light splatter-resistant at maximum
    SUBMERSIBLE: FOR GOD SAKES NOOOOO!!!
    ACCESSORIES: Unknown
    SIZE:
    WEIGHT: Not equipped to weigh
    COUNTRY OF MANUFACTURE: Unknown
    WARRANTY: Unknown

    PRODUCT RATING:

    Star Rating





Unknown-type High-Powered Green Laser Module *






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