Figure 5 | Scientific Reports

Figure 5

From: Hollow-core fibres for temperature-insensitive fibre optics and its demonstration in an Optoelectronic oscillator

Figure 5

Phase noise properties of the OEO. (a) at 1550 nm and (b) 1612 nm operating wavelengths when the HC-PBGF was used as used as a delay line (green) and when a standard optical fibre that introduced a similar delay was used as a delay line (dashed-red) for comparison. No degradation of the noise performance is seen, showing stable performance of the HC-PBGF based system (which offers a >100-fold reduced temperature sensitivity).

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