Dual-Comb Dynamic Interrogation of Fiber Bragg Grating With One Mode-Locked Fiber Laser

Dual-comb spectroscopy schemes have been demonstrated as an attractive solution for advanced optical spectroscopic analysis. The widely used fiber Bragg grating (FBG) sensing could benefit from the high spectral resolution and broad spectral coverage they could offer. However, the complexity, cost, and size of traditional dual-comb systems are prohibitively high for FBG applications. Dual-waveleng...