The paper reports the first experimental realization of a dielectric optical cloak, designed using quasi-conformal mapping to conceal an object placed under a curved reflecting surface, simulating the reflection of a flat surface. The cloak consists of isotropic dielectric materials, enabling broadband and low-loss invisibility at a wavelength range of 1400-1800 nm. The design avoids material and geometric singularities by compressing the object into a conducting sheet (carpet cloak), which transforms the curved surface into a flat one. The cloak is fabricated on a silicon-on-insulator wafer, with a 2D sub-wavelength hole lattice varying in density to achieve the desired index profile. Experimental results show that the cloak successfully transforms the curved surface into a flat one, making any object placed behind it invisible. The cloak demonstrates broad bandwidth performance and is nearly lossless, suggesting that invisibility devices are within reach at optical frequencies.The paper reports the first experimental realization of a dielectric optical cloak, designed using quasi-conformal mapping to conceal an object placed under a curved reflecting surface, simulating the reflection of a flat surface. The cloak consists of isotropic dielectric materials, enabling broadband and low-loss invisibility at a wavelength range of 1400-1800 nm. The design avoids material and geometric singularities by compressing the object into a conducting sheet (carpet cloak), which transforms the curved surface into a flat one. The cloak is fabricated on a silicon-on-insulator wafer, with a 2D sub-wavelength hole lattice varying in density to achieve the desired index profile. Experimental results show that the cloak successfully transforms the curved surface into a flat one, making any object placed behind it invisible. The cloak demonstrates broad bandwidth performance and is nearly lossless, suggesting that invisibility devices are within reach at optical frequencies.