A contactless power supplying device is provided. The device includes an osteogenic protein dispersed within a porous matrix comprising a polymer of collagen and glycosaminoglycan cross-linked to an MC value of about 800 to about 60,000. The micromirror device comprises a hinge support formed on a substrate and a hinge that is held by the hinge support. The signal to be measured is fed to a bank of delay elements, each with a slightly different delay with the difference in delay between the first and the last being more than D. The two or more controllable optical waveguides are configured to modulate the light amplitudes andor phases in a substantially same manner when the two-state modulators are in identical states.