BI-DIRECTIONAL MULTI-PULSEWIDTH OPTICAL TIME-DOMAIN REFLECTOMETER

摘要

There is provided a bi-directional optical reflectometric method for characterizing an optical fiber link. The method comprises: performing at least one forward-direction light acquisition from one end of the optical fiber link and performing at least one backward-direction light acquisition from the opposite end, wherein each light acquisition is performed by propagating at least one test light signal corresponding to given spatial resolution and detecting corresponding return light so as to obtain a reflectometric trace representing backscattered and reflected light as a function of a distance on the optical fiber link, and wherein said forward-direction light acquisition and said backward-direction light acquisition are performed with mutually different spatial resolutions; and deriving a value of at least one parameter characterizing an event at a location along said optical fiber link at least using the forward-direction light acquisition and the backward-direction light acquisition performed with mutually different spatial resolutions.

主权项

1. A bi-directional optical reflectometric method for characterizing an optical fiber link, the method comprising:
performing at least one forward-direction light acquisition from one end of the optical fiber link and performing at least one backward-direction light acquisition from the opposite end of the optical fiber link,
wherein each light acquisition is performed by propagating in the optical fiber link from the corresponding end, a test light signal corresponding to a given spatial resolution in the optical fiber link and detecting corresponding return light from the optical fiber link so as to obtain a reflectometric trace representing backscattered and reflected light as a function of distance on the optical fiber link, andwherein said forward-direction light acquisition and backward-direction light acquisition are performed with mutually different spatial resolutions; and deriving a value of at least one parameter characterizing an event at a location along said optical fiber link at least using the forward-direction light acquisition and the backward-direction light acquisition performed with mutually different spatial resolutions.