A rotor blade for a turbine of a combustion turbine engine having an airfoil that includes a pressure and a suction sidewall defining an outer periphery and a tip portion defining an outer radial end. The first active material is a carbon material having a DG ratio of 0. Also, when it is detected that the proper HPD signal has been generated from the monitoring device, the power of the external power source is supplied to attached circuits of the host device and the monitoring device, and if the HPD signal transmitted to the host device is the proper signal, the HPD signal is transmitted from the monitoring device to the host device. The proper nouns can be stored, for example, in memory that may, by way of further example, be a temporary dictionary. An adaptive coupler positioned in the optical path is responsive to a beam steering control signal for steering and aligning the focal point relative to the light-receiving end face of the optical waveguide.