A surgical fastening apparatus and associated method of use is disclosed. The method includes receiving an access request from a network device, identifying, based upon the access request, an authentication mechanism for facilitating AAA services for the network device and selecting, based on the identified authentication mechanism, a particular server from a plurality of servers that is compatible with the identified authentication mechanism. Each of the pixel units includes a first scan line, a second scan line, a data line, a first thin-film transistor, a second thin-film transistor, a first pixel electrode and a second pixel electrode. The threshold voltage is determined by the implant levels used to form the active pixel sensor and can be optimized by using optimum implant levels. A portion of the waveguide ends at a facet such that a first portion of a light signal being guided by the wavegide passes through the facet and a second portion of the light signal bypasses the facet and remains in the light-transmitting medium.