A visible light modifier and method provide a new visual display. Then, an input optical signal is introduced into the first waveguide wherein light having at least one guided TE polarized mode of mode ranking mode-i-TE and at least one guided TM polarized mode of mode ranking mode-j-TM remaining within the first waveguide. The driving device moreover includes a filtering circuit of a high-pass type, which is connected between the differential sense amplifier and the actuation and control stage, and has a bandpass that includes the resonance frequency. having D and L inputs, a chain of substantially identical cascaded upper buffers 210,220. The computer processor receives a selection for a second contact name and in response presents an internal network contacts map comprising the user name icon connected to the first contact name via a first link and the user name icon connected to the second contact name via a second link.