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Wednesday, March 26, 2014

The Highest Output Laser Pointer


There are two kinds portable laser pointer, which are pen size and handheld laser pointer classified by their sizes. Both of them are mainly consist of laser diode, lens, cooling system and body even in different size. It is acknowledge the smaller pen size laser pointer is always in a lower output power when comparing with handheld laser pointer. Usually the output power of a pen size laser pointer is from 1mW to 300mW at most, while the handheld laser pointer is from 100mW to 3000mW. But do you know the reason? As per we know, it produces heat when a laser pointer is operating, what’s more, the higher the power, the more heat the laser pointer generates. Thus the cooling system is an indispensible part in a laser pointer so as to make a stable performance. For a low output laser pointer, a small size normal metal heat sink cooling system is enough, while it asks for a better cooling system for a higher output cooling system to disperse heat. In order to make the cooling system work well, much space is needed at the same time. So now you can understand well the reason why higher output power is in a bigger size when comparing with the small pen size lower output power laser pointer.

As above mentioned, the higher of output power the laser pointer, the more heat it produces. It is not exaggerated that the heat of a 1000mW handheld laser pointer generates in one minutes on the laser pointer body can burn one’s hand skin immediately. One can never image how powerful it is unless experience it himself.
Even there is excellent cooling system equipped into the laser body, it is impossible to tolerate the heat of a 3000mW laser pointer at most. Both the laser diode and lens would be damaged seriously at once. So next time when supplier told you they have 3000mW above laser pointer, it must be a cheater.
Laser pointer enthusiasts and lovers always use high power laser pointer for thermal and burning experiments, 2000mW 445nm blue laser pointer is powerful enough to do various applications. If it is still not enough, I am sure, 3000mW IR laser pointer in wavelength of 808nm and 980nm would satisfy your needs.
So now, one can make sure the highest power of handheld laser pointer is no more than 3000mW. 

Remember to light a high power laser pointer several seconds and takes a rest, the lifetime can be longer by doing that. And a pair of laser safety goggles is necessary when operating a high power laser pointer.

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