Fiber Bragg gratings (FBGs) have been extensively studied and used in o ptical sensing applications due to their unique advantages.For transverse load sensing,sensor s based on FBGs can be fabricated by utilizing the Bragg wavelength splittin g generated from the load induced birefringence in the fiber.However,the lateral pressure sensitivity of normal FBGs is too small to offer a good range of applications in comparison to FBG-based axial load sensor s.Thus,to improve the performance in small load applications,various FBG variants have be en developed. In this paper,a transverse load sensing scheme based on the effect of a conform ing elastomer material on the transmission spectrum of tilted fiber Bragg grating (TFBG) is s tudied and small forces measurement (0~7N) was demonstrated.Applying a fast Fourier transform (F FT) method,the transmission spectrum can provide sensitivity of 1920a.u./ (N/mm) and linearity of 0.998.Moreover,we focus on minimization of the sensor size as well as the demonstration that the sensitivity in lower load range can b e adjusted by properly selecting the conforming material.The proposed sensor can be implanted into elastic material for conforming contact measurement.