What is the principle of this?

02 October 2022 0 7K Report

Multimode-PMMA-multimode fiber produces interference, in which the PMMA diameter is drawn to about 60 microns, and when the PMMA is connected to the MMF at both ends as shown in Figure 1, the spectrum displayed is consistent with the metered light source. However, when PMMA and MMF have a certain tilt, as shown in Figure 2, irregular interference will occur. What is the principle of this?

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