Fiber Optic Sensors (FOSs) successfully suite critical sensing applications like in biomedicine or harsh environments. They combine robustness to noise and interference with minimal invasive impact, real-time measurement capabilities, and remote interrogation. FOSs are all-dielectric devices that are immune to electromagnetic interference and their small size allows embedding into various structures including biological tissues, overcoming the major limitations of conventional electronic sensors. Fiber Bragg Gratings (FBG)s are the most widespread FOS because of their high rejection to intensity noise and the ability to achieve quasi-distributed sensing through multiplexing. However, their fabrication requires a complex and expensive setup to induce a periodic refractive index perturbation in the fiber core that produces light reflection at a given wavelength dependent on temperature and applied strain.