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I know that the diodes exist - check out the first item on this list - but that itself is not enough... There has to be a massive commercial market* to drive down the prices, before hobbyists like us, who generally don't have 4000+EUR to drop on a single diode, can realize their 'DIY laser...

What should I ask him to bring me? :beer:

This is a feeler for a potential GB of 638nm Multi-Mode diodes: The Mits.300mW which many of us know well, for $39 a piece :eg: And also: the open case Mits.500mW diode, for $78 each :gun: Please let me know (post or PM) what the interest levels in either of these diodes are. If it looks like...

This GB is now closed. Thanks to all participants of the first round. A new GB will be announced soon :yh: This GB is for the Osram PL450B 80mW Single Mode diode and for the 638nm Mits.500mW Multi-Mode diode. Prices for round2 will be 38$ per unit for the PL450B & 76$ per unit for the...

I was thinking about N-level laser systems, and whether a diode laser is a '2-level' laser when a question occurred to me: Why must I pump my InGaN bluray diodes with over 4.5V (nearly 6V sometimes) to get a ~3eV photon (405nm)? is there a non-radiative transition in there? or is it a more...