The fabrication of high quality custom-designed photonic crystal and microstructured fibres is central to the research at MPL. The goal is to remain at the forefront of developing novel types of PCFs, and to provide a short path from the first idea of a new experiment to the realization of the often unique fibre required for the experiment. The main procedure used is "stack-and-draw", which relies on manual assembly of glass capillaries and rods into an appropriate preform stack whose structure corresponds approximately to the desired fibre structure and which is then drawn to fibre in one or two steps. By tuning process parameters such as temperature, preform feed rate and drawing speed, as well as the pressure inside the preform, the size of the air-holes and their spacing can be controlled. We have two drawing towers for silica capillaries and fibres, and one for drawing of soft-glass. All three are located in a state-of-the-art cleanroom in the MPL building complex.
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Current issue: Newsletter No 25 - January 2023
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