HIGHLIGHTS
SUMMARY
Photonics technology enables the fabrication of optical systems on the surface of a silicon chip. As a result, the fine interferometer is 4 times more responsive, which can be seen in Fig 6 a), where the phase signals differ in amplitude by a factor of 4, and the noise floors are similar as shown in the PSD graph. The response is shown in Fig 10 (only for the PIC-based interrogator, as this frequency was completely out of the frequency range of the reference interrogator). This feature complicates WDM multiplexing in the passive scheme . . .
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