Krutz
0
- Joined
- Nov 21, 2007
- Messages
- 1,733
- Points
- 48
hi everyone,
i would like to combine a green (or if necessary other visible color) pilot-laser with a high-power IR module. module one is 808nm and will be between 10 and 30 watts. module two, in a different setup, is either 830 or 930nm (have to look it up, its years old!) and 2 watts. the modules both are fibercoupled, so pbs wont work. seems like a dichro is my only chance? i couldnt find much data on their specs in the IR.. obviously, it should pass or reflect almost all IR, even "only" 99% efficiency would mean some hundreds of mw IR bouncing around.. not to mention that several watts on a several mm² area is a high stress on any material.. ;-)
efficiency in green is uncritical, i will shine green into it until enough is making it out at the aperture ;-)
common "greenie"-ir-filters seem to do the thing, not? pass green, reflect (or absorb?) IR? they are optimized for green transmittance, not for IR reflectance though..
any ideas or hints on that? i`m surprised i didnt find any topic on that on lpf or pl..
Manuel
i would like to combine a green (or if necessary other visible color) pilot-laser with a high-power IR module. module one is 808nm and will be between 10 and 30 watts. module two, in a different setup, is either 830 or 930nm (have to look it up, its years old!) and 2 watts. the modules both are fibercoupled, so pbs wont work. seems like a dichro is my only chance? i couldnt find much data on their specs in the IR.. obviously, it should pass or reflect almost all IR, even "only" 99% efficiency would mean some hundreds of mw IR bouncing around.. not to mention that several watts on a several mm² area is a high stress on any material.. ;-)
efficiency in green is uncritical, i will shine green into it until enough is making it out at the aperture ;-)
common "greenie"-ir-filters seem to do the thing, not? pass green, reflect (or absorb?) IR? they are optimized for green transmittance, not for IR reflectance though..
any ideas or hints on that? i`m surprised i didnt find any topic on that on lpf or pl..
Manuel