CONFIGURATION SYSTEM FOR OPTICAL SWITCHING ARRANGEMENTS

摘要

A configuration system adapted for use in an optical switching arrangement is provided. The arrangement comprises an array of input ports (40), an array of output ports (43) and a switching system (41, 42) configurable for switching a signal from each input port to a chosen output port, and the configuration system comprises an array of radiation sources (20), first and second optical elements (21, 22), a radiation detector (23) and a controller (24). Radiation from each source is directed onto the first optical element, to the switching system, the second optical element and the radiation detector. The radiation detector receives the radiation and sends the detected position thereof to the controller. The controller compares the detected position with an expected position, generated when the switching system is configured for switching of a signal from the input port corresponding to each radiation source to a chosen output port, and configures, as necessary, the switching system until the detected position is at least substantially similar to the expected position.