rhd
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I just finished reading goninanbl00d's DPSS primer. One of the more useful threads/primers I've read in a while actually - I found it quite well layed out and straightforward.
However, I'm still not entirely clear as to why we can't frequency double some other wavelengths apart from 1064. For example, why could we not use KTP to frequency double a 1206nm diode like this one to end up with a fairly unique 604nm orange colour?
This seems too simplistic, but I've heard that Corning had some green 530 (?) nm lasers that were really just 1060nm diodes, directly doubled (as opposed to traditional 808 pumped DPSS). They're used in some of the ShowWX pico projectors. The fact that I haven't seen this done anywhere, is enough to suggest to me that it isn't that simple. I'm presuming that KTP can't simply double anything you throw at it. However, I'm also somewhat left with the impression from that DPSS primer that KTP can double anything above 500nm.
However, I'm still not entirely clear as to why we can't frequency double some other wavelengths apart from 1064. For example, why could we not use KTP to frequency double a 1206nm diode like this one to end up with a fairly unique 604nm orange colour?
This seems too simplistic, but I've heard that Corning had some green 530 (?) nm lasers that were really just 1060nm diodes, directly doubled (as opposed to traditional 808 pumped DPSS). They're used in some of the ShowWX pico projectors. The fact that I haven't seen this done anywhere, is enough to suggest to me that it isn't that simple. I'm presuming that KTP can't simply double anything you throw at it. However, I'm also somewhat left with the impression from that DPSS primer that KTP can double anything above 500nm.
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