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But I need special beryllium output glass as well as precise mirror adjustment - regular glass or plastic is opaque for IR. In other words, for CO2 laser setup I need to buy the actual pipe at least (if I do power part on my own).
Registered Member #3215
Joined: Sun Sept 19 2010, 08:42PM
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Posts: 780
there are plenty of used optics out there, and you can also use a polished copper plate for the HR and a polished copper cup with a small hole in the middle for the OC part, in a hemispherical unstable cavity, as it should have enough gain to be able to lase with only tens of passes
Wow, $60 for a tiny piece of colored glass? For me it is expensive. Anyway, in general, did anyone here succeed with pulsing a dozen of joules of output energy in a single pulse shot? I can do it in a way of kinetic energy of iron projectile with recuperational gauss at 20% efficiency and under $200 of total part cost, but if the same damage can be done by laser - sure it is much more cool and worth the effort even if it will cost some more. Any hope?
Registered Member #3215
Joined: Sun Sept 19 2010, 08:42PM
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Posts: 780
this is an output coupler, you will need this if you want some power
this is a HR mirror you'll also need
and this is a borosilicate tubes set you'll need for the cavity to be pumped down, along with its water channel
after that you have to turn some mirror holders which will be your cavity endcaps, electrodes and tube mounting ends (two tubes concentric for cooling water flow, and ports for water and gas)
you'll have to design them to be able to adjust the mirrors orientation by a certain amount
this is achievable with a budget of $200 to $400 except the power supply which is quite simple to make (30kV max 10mA max)
there is also the TE or TEA CO2 laser which is the same as a TEA N2 laser except you flow some CO2 between electrodes... total budget can be less than $100 for this one
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Pulse laser
