most diodes can actually hit 30%-50% electrical to optical efficiency. --- On Fri, 10/21/11, Jon Elson <el...@pico-systems.com> wrote:
From: Jon Elson <el...@pico-systems.com> Subject: Re: [Emc-users] Laser diode for engraving To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Date: Friday, October 21, 2011, 7:59 PM Viesturs Lācis wrote: > Hello, gentlemen! > > I need a laser diode for engraving in wood. I have been looking in > eBay, but I mostly see either ~300mW diodes or something priced over > 1K $, which exceeds my budget ten times. There was also one seller > with 20W diodes for a reasonable price, but he could not provide any > information about the laser diode - what is included in package and > characteristics of the output beam. Basically I am looking for > something no more than 10W, most probably that would be something less > than that, because budget is small. So yes - I expect that it would > work relatively slowly. The requirement is the ability for user to > engrave his logo on plywood, before parts are cut out on router. > OK, a 10 W OUTPUT diode laser would probably need at least 250 W input, as few lasers ever exceed 4% efficiency. Keeping such a device from overheating is a major challenge. The big diode-pumped solid-state lasers use either bars of lasers with massive air cooling or liquid cooling. That's why these things are so expensive. Jon ------------------------------------------------------------------------------ The demand for IT networking professionals continues to grow, and the demand for specialized networking skills is growing even more rapidly. Take a complimentary Learning@Cisco Self-Assessment and learn about Cisco certifications, training, and career opportunities. http://p.sf.net/sfu/cisco-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ The demand for IT networking professionals continues to grow, and the demand for specialized networking skills is growing even more rapidly. Take a complimentary Learning@Cisco Self-Assessment and learn about Cisco certifications, training, and career opportunities. http://p.sf.net/sfu/cisco-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
