Using the optical frequency domain technique for the analysis of discrete and distributed reflections in an optical fiber

The optical frequency domain technique has been used in the analysis of discrete and distributed reflections in an optical fiber. To study discrete reflections, three examples are shown on a single-mode fiber: the first involves one reflector, the second and third examples use two and three reflectors in sequence. Another investigation is conducted on a 500-m multimode fiber to detect distributed reflections. This technique is suitable for recognition of the positions and properties of discrete reflections along an optical fiber.