75W Pulsed laser or 75mw CW?

[cb90188]

Hi,
I'm new here:wave:. i'm now working on a laser cutting project for myself, and i saw a 905nm 75W laser but soon realize it is only the peak power. As it has a duty cyclical of 0.1%, its avg power is 75*0.1%=75mw. ( the company says it could be overdrive to 4X75w @ peak)

Also, its price on ebay has now drop to $18 usd, which is not too bad. So I want to try this, but I need to know how is it compare to a CW laser say maybe 75mw or something like 100mw/ 150mw?

I seen some people in the forum said they were going to try this but I could not find any result.

Anyone can help me?

 

[Alien Laser]

A laser at 75W will work for you a (75 Watt CO2) ,but i don't thing you will find one for like 18$
a 75mW laser is around $10 and will not work
your calculation is for a radar laser 75*0.1%=0.075mW do you have the link to the items i thing your talking about the OSRAM SPLPL90_3 Pulsed Laser diodes this are not design to cut anything
tare used for radar scanners,and distance measurement and so on i hope this helps !

 

[Deleted member 42751]

What type of cutting are you trying to achieve? It seems to me that 75mW will not accomplish much in the way of cutting; 75W pulsed will do much better.

to confusing for me :thinking:

Alien, if this is too confusing for you, don't comment. :tsk:

 

[cb90188]

Alien,
Yes, it is that laser, and im aware it is not used for cutting. But hay, it is only $18, doesn't hurt to try nor ask.
BTW, it is not 75mw peak. It is 75watt peak. So avg watt is 75mw



Sta,
Im thinking of cutting dark colored acrylic. And i am also considering using more than one diode if that helps.

 

[Cyparagon]

These are meant for LIDAR, not cutting things. The large emitter, IR wavelength, and plastic package make it pretty much useless for other things.