What is the optimal dichroic sequence?

[laserlackey]

445-->638-->532--scanner

The last one seems to work surprisingly well, probably due to the fact the last dichro from the Casio projectors is very good for both transmission and reflect, and dirt cheap and abundant.

445 is also the cheapest, so easiest to make up for the losses over multiple transmission stages.

I've found this to be true, as well. In my case, green is the weakest color and blue is the strongest, so pushing the 445 through a mirror and 2 dichros isn't an issue since there's more than enough headroom on an m140. Red is the next most plentiful color, and I've got about 100mW to spare there, so again if there's a bit of loss I just crank the power. Green is last because I've been having the most trouble getting enough power out of the PL520. When I switch to a PL520-B1 it should eliminate the issue of not enough green, but for now Bl->R->Gr->Output is working quite well. Also, the projector sleds are cheap and have dichros that work fairly well in this order.

[soforene]

... green is the weakest color and blue is the strongest....

Blimey !
I've only been tinkering with lasers for 5 minutes but My Oh My how the world has changed ......

[laserlackey]

Blimey !
I've only been tinkering with lasers for 5 minutes but My Oh My how the world has changed ......

Yeah, that mantis shrimp DNA graft I got is really paying off!