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Hikaru
01-19-2007, 02:30 PM
[page=Introduction & Design]
Introduction
Today, we will be looking at another high powered portable laser. Again, this is no toy by any means. The Pulsar series is a line of high powered red lasers put out by the reputable Wicked Lasers (www.wickedlasers.com). The Pulsar lasers are available in 75mW, 100mW and 125mW. We will be looking at the 125mW Pulsar which emits light at a wavelength of 650nm. We are also going to be looking at the 650nm Red Sport Elite Goggles.

<img border="1" src="http://img292.imageshack.us/img292/1940/gogglespulsarthumbrh9.jpg" />

Design - Presentation box
The presentation box is large and filled with soft foam – and quite tightly so. You would want maximum protection for something which can be ruined just by dropping it. The top cover clicks into place thanks to the two hidden magnets on the front. It is recommended you keep your laser in here when not in use.

<img border="1" src="http://img142.imageshack.us/img142/2095/wlboxthumbbz4.jpg" />

<b>Specifications:</b>

<table border="1" width="400" style="border-collapse: collapse">
<tr>
<td bgcolor="#E1EEF2"><b>Name</b></td>
<td>Pulsar Series</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Size</b></td>
<td>150mm x 12mm</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Weight</b></td>
<td>50g</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Wavelength</b></td>
<td>650nm</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Laser Body</b></td>
<td>Silver Polished Brass</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Transverse Mode</b></td>
<td>TEM00</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Output&nbsp; Power</b></td>
<td>125mW</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Beam Divergence</b></td>
<td>0.5mRad</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Beam Diameter</b></td>
<td>-4.5mm @ aperture</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Power Consumption</b></td>
<td>170mA-240mA</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Power Supply</b></td>
<td>2 X AAA 1.5V</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Battery Lifetime</b></td>
<td>2-3 hours</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Switch</b></td>
<td>Momentary On/Off Button</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Expected Lifetime</b></td>
<td>&gt;5,000 hours</td>
</tr>
<tr>
<td bgcolor="#E1EEF2"><b>Warranty</b></td>
<td>3 months</td>
</tr>
</table>

Design - Pulsar Laser
The Pulsar series laser has a very attractive shiny chrome look. It is actually silver polished brass. The construction is solid and everything is nice and tight, no loose components.

The shiny finish really gives it a professional look and it does not look cheap at all. The weight balance is perfect, it isn’t too light nor is it too heavy.

<img border="1" src="http://img245.imageshack.us/img245/1937/pulsarthumbza1.jpg" />

The laser body is very smooth and there are no rough or gritty surfaces unlike the Evolution series. This is probably so that it reflects the idea of the laser pointer – professional, safe use. The Evo on the other hand is rough, rugged and is designed with destruction in mind. ‘Wicked Lasers’ is also printed on the laser body in a silvery white text. The screw battery cap is on the opposite end of the aperture (where the laser beam shoots out of). The laser uses 2xAAA batteries. The ‘on’ button is located just below the warning sticker; it’s a very flat low profile button so you cannot accidentally turn it on when it is not in use. This is good as you do not want your battery being wasted or even burning something!
It seems that Wicked Lasers have taken note of the comments about the previous black Pulsars and have attended to the size of the aperture hole.
No longer does the beam prematurely terminate on the inside of the aperture cap, instead, the light pours out of the front of this laser in a reasonably thick cherry-red stream and without smoke in a moderately lit room, the beam is visible if the laser is shining toward you.

As a focused diode, the Pulsar has that slightly unusual beam profile shared by many diode lasers:
At aperture, it's circular, with a brighter band across the centre. Further down the beam, it becomes slightly tighter with rings around the spot. Again, like many diode lasers, it has a thin line through the spot which gets longer, the further from the aperture the target is.
I didn't notice this effect in the previous black Pulsar I've played with but it's not so bad that it detracts greatly from this laser.

When I was examining the beam profile, I placed a black piece of newspaper in the beam and gradually moved it away from the aperture, watching the shape and intensity of the spot as I did so. When I reached about 3m away from the aperture, the paper started smoking. After that point, the beam spreads a little although the divergence still appears to be quite good for a hand-portable battery powered diode laser.

In comparison to green, I'd say it has about the same visibility as about 5mW to 10mW at 532nm (depending upon atmospherics). Add just a little smoke and it's quite a thick solid beam. It certainly has greater visibility than the Sonar to the naked eye.

I measured the P125 on the Laser Check at two wavelength readings.
The P125 label states 650nm, however previous Pulsars, also labeled as 650nm have been 670nm so I thought it best to take readings at both settings due to the bias that the Laser Check gives to various wavelengths.

@670nm: 108mW
@650nm: 153mW

Both readings taken within seconds of switching on. I allowed the lasers to cool between readings.

The laser didn't vary in power over successive readings either.
I was using my best NiMHs for the job (and I've seen these NiMHs outperform fresh alkaline batteries in a Laser Check reading. Good NiMHs or poor alkaline? I don't know. I've not seen a set of alkaline which will outperform these NiMHs.)

Wicked Lasers seemed to have dispensed with the idea of pocket-clips on their lasers and the last model to have been produced with a pocket clip seems to be the all-black textured casing.

I like this casing because the black surface seems to be harder wearing than the black clipless design which seems to be susceptible to scratches in the surface.

I don't really feel like deliberately trying to scratch this new chrome P125, however, it must be said that the quality of the surface is good and I expect that it will be quite hard-wearing. The drawback of the nice shiny chrome is that it picks up finger-prints very easily although it only takes a wipe with a soft cloth to remove them and restore the gleaming shine.

In terms of size, this seems to be the same size as my recent Fusion (black clipless with logo) and it fits nicely into the Dragon case as do the other lasers from WL apart from the Spyder and Sonar.

I like the new Pulsar, even if it does pick up fingerprints. Its finish seems harder wearing than the black coating on my Fusion and it will continue to look good long after my Fusion has started to show signs of wear and tear.

[page=Testing]
Testing
The Pulsar series have very low divergence meaning the beam will not spread out very much (about 5mm per 10metres according to specifications). To start off the testing I will tell you the output readings I got from this model and they are as follows: -

Minimum output power: 105mW
Maximum output power: 112mW
Average output power: 115mW

As you can see from the above results this Pulsar is very stable and outputs as expected.

The next test involved visibility at night. The beam was tested in dark conditions outside, looking over a park to see how far the beam could go and also how visible it was. Unfortunately, our eyes are not as sensitive to red light as to green light. This means the beam is barely visible even at high powers such as this. Also, the dot is a lot harder to track because our eyes simply don’t see the dot as well. However, the dot of the Pulsar could be seen from about 1-1.5miles away.

<img border="1" src="http://img402.imageshack.us/img402/6381/pulsarbeamthumbzp3.jpg" />

Now we move on to the burning power of the Pulsar. The Pulsar easily pops a balloon from around 0 – 3m, bare in mind the balloon must be coloured in black marker to where your going to aim it. It also creates holes in black bin liner. Unfortunately it does not light a match unless an external lens is used to focus the beam even further…but then again we can do that with sunlight, so it isn’t as fun.


[page=650nm Red Sport Elite Goggles]
650nm Red Sport Elite Goggles
The goggles came in a very smart and compact black case. It is a zipped case that holds your goggles and there’s enough room for your laser too.

Inside the case you obviously have the blue coloured 650nm goggles. These are priced at $49.99 from Wicked Lasers. The ‘arms’ of the goggles are extendible so that you can make them longer or shorter depending on your preference. They are comfortable to wear and most importantly save your eyesight! You would most likely dismiss the thought of buying goggles when you purchase a laser. However you shouldn’t! The goggles cost $49.99 and are replaceable; your eyes are invaluable and of course can’t be replaced.

<img border="1" src="http://img367.imageshack.us/img367/3861/gogglesthumbsd6.jpg" />

Inside the case you also receive a little cloth to clean your goggles. You also get an elastic necklace so that you can fix it to your goggles and then rest it around your neck, preventing you from having to put your goggles down every time you’re not using them.

The first way in which to test these new goggles was to shine the laser beam directly into them (without wearing them of course). Amazingly, no light passed through! As good as it sounds, this is not the case. When you wear the goggles and shine the laser about, you cannot see the dot at all, even directly on your hand. This is of course a problem if there are people about because you don’t know exactly where the laser is pointing. It’s as if you are using an invisible infra-red laser which to anyone outside research labs, is useless and of course extremely dangerous. This is something Wicked Lasers can easily rectify and is not really a huge problem at the moment.

Overall I think these goggles are very good, and yes, too good. If you’re into close range burning, melting, popping or lighting then these are a must whether the dot can been seen or not. Paying $49.99 to save your eyesight is a great deal. If you own a Pulsar, these are practically a must.

[page=Value & Conclusion]
Value & Conclusion
<table width="100%" cellpadding="5" cellspacing="0" id="result">
<tr><th>http://www.techpowerup.com/images/dollar.gif</th>
<td>
The 125mW Pulsar goes for $249.99 the Goggles for $49.99. </td>
</tr><tr>
<th>http://www.techpowerup.com/images/thumbup.gif</th>
<td>
Burning power is excellent
Less distracting during starpointing than green lasers
Very attractive
Solid build
Cheaper than green lasers with similar output powers
</td>
</tr>
<tr>
<th>http://www.techpowerup.com/images/thumbdown.gif</th>
<td>
Not very visible
Doesn't burn as good as Evolution series, due to beam diameter
</td></tr>
<tr><th>9.5</th>
<td>
Overall, I can say is that I am quite happy with the Pulsar and it performs quite well. Although not as exciting as a green laser, this would definitely be something you might want to start with if you don’t want to dish out a lot more for a green. Red laser enthusiasts would certainly be in for a treat!
</td></tr><tr><th></th><td>http://www.techpowerup.com/images/recommended.gif</td></tr>
</table>

Thanks to Paul for helping me with this review and doing tests on the laser.