[ASOC]

THere is a 150 watt ‘kit’ of a IR LASER - but it is pumped with a 60 Mhz feed.

I’ll try and find the link - I doubt it will mess up a bus, but is used for commercial woodburning - like those cute signs (Jones Family) you see in catalogs....

[ASOC]

Here is one kit
http://www.powerlabs.org/laser.htm

Interesting site.

[berthanicholas]

You will enjoy the special designed astronomy laser pointer from http://www.astronomylasers.com/, a great site to have a look at.