The present invention provides a manufacturing method of optical fiber that improves the adherence between a coating and a bare optical fiber composed of silica glass during the formation of the coating on the bare optical fiber in high-speed drawing of optical fiber. Each of the plurality of silicon-rich, silicon nitride layers can trap charge and thereby increase the density of memory structures formed using the methods described herein. In response to initiation of recovery operations for the CAPP, the CAPP performs data recovery operations, including transmitting, to at least one destination indicated by the destination tag of one or more entries, an indication of a data error in data to be delivered to that destination from the attached processor. The system explores the impact of user defined constraints and presents histograms and rule cubes including superposed and interleaved rule cubes showing the effect of the constraints.