Extended Data Fig. 9: Characterization of a typical preform draw. | Nature

Extended Data Fig. 9: Characterization of a typical preform draw.

From: Diode fibres for fabric-based optical communications

Extended Data Fig. 9

a, Measured distance between adjacent LEDs in the drawn fibres. The diodes were arranged in two parallel arrays in the preform, which was drawn with a draw-down ratio of 33. b, Optical power characterization of the LEDs in the drawn fibre. The power was normalized with the power of the brightest diode, which was located adjacent to the power source. Non-operational LEDs are marked by a red cross. The emitted power decays as the voltage drops on the wires in the fibre for devices located away from the power source.

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