Methods, systems, and apparatuses for producing time delays in optical signals are provided. The methods, systems, and apparatuses allow the time it takes for an individual light beam to travel an individual light path to be varied. In one example, the apparatuses have an array of actuator elements and first and second optical elements arranged such that the time it takes for an individual light beam to travel an individual light path between the array of actuator elements and the first and second optical elements is variable.