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Lazer12GS

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Hi, my names Gage and I live in Texas. I have been into lasers for about a year now and I have a 532nm Laser 303, a Sanwu pocket 520nm 150mw, a Thor M2 405nm 1.6W, and a Sanwu Challenger II 470m 4W. I am looking forward to knowing some of you and my next post is going to be some of my questions regarding how to build a laser.
-Gage
 

paul1598419

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Welcome to the LPF, Gage. Are you sure you got a 1.6 watt 405nm laser, as the 1.6 watt ones are usually 445nm. The single mode diodes used for 405nm lasers will output up to 900+ mW of optical power. Very nice to have you among us.
 

BowtieGuy

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Hello and welcome to LPF, Gage! :D
Be sure and have proper safety eyewear for your lasers wavelengths.

Have fun, stay safe, and enjoy your stay!
 

Lazer12GS

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Thanks everyone for the welcome,
@paul1598419, when compared to my friends 445nm 1W laser, it appeared clearly purple next to his blue. I haven’t had it on a LPM yet, but it looked roughly equal in visibility to a 1W blue. Thank you for the info
 

paul1598419

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The problem here is that 405nm is not nearly as visible mW for mW when compared to the 445nm blue laser. In fact, the 405nm is only a small fraction as visible as the 445nm one and even the 900+ mW 405nm laser is about as visible as a 50 mW 445nm laser. Because 405nm is so very close to UV it is just barely visible even at powers that will easily burn black plastic or even some types of wood. It will look violet to anyone who can see it, but the amount of light that can actually be seen is quite small. Also, because 405nm is so close to UV, it will cause fluorescent objects to light up very brightly compared to the laser light itself.
 

paul1598419

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Yeah, I have a Thor 1.6 watt 445nm laser that was sent to me to review here. That is why I believed yours to be the same wavelength. These use a 5.6 mm diode that has become quite inexpensive and was called the M140 diode after the projector it was harvested from. Your attachment looks more like a 445nm laser than a 405nm one.
 

Lazer12GS

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I believe this photo was with the X3 beam expander on. Thank you for the information :)
 

Lifetime17

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Hi Gage
Welcome to LPF be safe always.
Rich
 

paul1598419

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I believe this photo was with the X3 beam expander on. Thank you for the information :)
The beam expander would have no effect over the color, and in this case, the brightness of this laser. It does not look at all like a 405nm laser.
 




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