Optical CellsThe cells of such type are used to form plane-parallel layers of active media in dye lasers. Depending on geometry of optical pumping and the purpose in hand the cells of the different shape can be applied: cylindrical, rectangular or rather specific, providing dye layer thickness less than 1 mm. In combining with a lens the latter cell can be used as a Q-switch in lasers with passive self-mode locking.
| | Material | BK7 or UV Fused Silica |
| Non-parallelism between surfaces | 10 arc. sec |
| Surface quality |  /10; 20-10 scratch/dig |
| Cell thickness | 1-10 mm |
| Working apertures | up to 40 mm |
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