A low mode beam combiner including individual entry fibers that maintain a low mode operation, an exit fiber, and a spliced section including a bundle of spliced entry fibers, in which a bundle diameter is reduced to a LMA core of the exit fiber. This enables detection of changes of mounting attitude for the moving object without requiring additional hardware. The treated walls promote an even etch rate when used to perform gas-phase etching of silicon regions following conditioning. The processing elements may be integrated on an integrated circuit chip with an input for receiving the graphics data and other video and graphics components. Each bit line has a zigzag configuration and connects to a pair of adjacent sourcedrain regions in alternating manner along the bit line length. The secondary side has a rotating core and separate secondary sub-windings, each of which has forward and return paths that are circumferentially disposed about the rotating core.