Interferometers and autocorrelator based sensors are disclosed that are configured to have multiple sample arms which can be scanned and the backscattered low coherence source light from a sample resolved in a single sweep of one or more variable delays of the sensor. Borescopes and catheters capable...http://www.google.de/patents/US7417740?utm_source=gb-gplus-sharePatent US7417740 - Single trace multi-channel low coherence interferometric sensor
