Abstract: System, method, arrangement and non-transitory computer-accessible can be provided for, e.g., effecting refractive changes of the cornea by spatially-selective two-photon crosslinking of collagen fibers. For example, it is possible to obtain at least one property of at least one portion of the eye using at least one first arrangement. Based on the at least one property, data indicating a plan of affecting the portion(s) of the eye can be generated. Further, it is possible to control at least one electromagnetic-radiation-providing second arrangement to execute the plan and irradiate the at least one portion based on the plan. The irradiation can be selectively controlled to be delivered to at least one selective depth within the portion(s).

Abstract: Fiber-optic devices and sensors are implemented using fiber gratings. The fiber-optic device includes the fiber grating, an input mode stripper and an output mode stripper placed at both ends of the fiber grating, to admit only one mode therethrough, and a polarizer. The fiber grating of this invention is used in combination with a directional coupler instead of a mode stripper and a polarizer. The fiber-optic device outputs desired wavelengths, a switching signal or an interference signal. An external perturbation, such as a strain, a temperature, light pulse, and etc. may be applied to the fiber grating in its preparation to change a characteristic of the fiber grating. These perturbations are actively used to make fiber-optic devices and sensors.