System and method for assisting in fiber optic splices
AssigneeEXFO Inc.
InventorsStephane Perron, Michel Leclerc
Life of this patent
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Abstract
There is provided a system and a method for assisting a technician in fiber optic cable splices and comprising a pair of test units including an OTDR, an optical switch, a tone generator and a tone detector to automate the splicing process and testing. The test units may be in communication with a wireless portable device used by the splicing technician and controlled therefrom. In one embodiment, the test units are driven by a test orchestrator application (e.g., server-based) to switch fibers, perform continuity tests and/or splice quality tests, triggered by the technician's portable device.
Claims21
A test system for assisting a splicing technician in optical fiber splices, the test system comprising:
- a first test unit and a second test unit to be connected toward opposite ends of an optical fiber link comprising a first fiber span and second fiber span to be spliced, each test unit having at least one output port and comprising:
- an OTDR acquisition device for performing at least one OTDR acquisition toward said output port in order to test a quality of the splice, wherein each OTDR acquisition is performed by propagating in the optical fiber link under test, a pulsed test signal and detecting corresponding return light from the optical fiber link so as to obtain an OTDR trace representing backscattered and reflected light as a function of distance in the optical fiber link;
- a tone generator to produce a tone optical signal toward the output port;
- and
- a tone detector to detect a presence of a tone signal produced by the tone generator of the opposite test unit and received via the output port, in order to test a continuity of the optical fiber link;
- and
- a test application comprising computer instructions to be executed on a wireless portable device used by the splicing technician and in communication with the first test unit and the second test unit, the test application comprising a user interface to display results of continuity tests performed using the first test unit and the second test unit and results of splice quality tests performed by at least one of the first test unit and the second test unit.
A method for assisting a technician in optical fiber splices using a first and a second test unit to be connected toward opposite ends of an optical fiber link, the optical fiber link comprising a first fiber span and a second fiber span to be spliced, each test unit having at least one output port, the method comprising:
- at least one of the first test unit and the second test unit activating a tone generator to produce a tone optical signal toward an output port;
- at least the other one of the first test unit and the second test unit detecting, using a tone detector, a presence of the tone optical signal produced by the tone generator of the opposite test unit and received via the output port in order to test a continuity of the optical fiber link;
- on a portable device used by the splicing technician and in communication with the first test unit and the second test unit, displaying a result of a continuity test performed using the first test unit and the second test unit in a user interface, whereby the splicing technician can verify that the spliced fiber spans match;
- after the splice is completed, at least one of the first test unit and the second test unit conducting a splice quality test toward the optical fiber link, the splice quality test comprising performing at least one OTDR acquisition toward the output port;
- and
- on the portable device used by the splicing technician, displaying a result of the splice quality test, whereby the splicing technician can be informed about the splice quality.
A non-transitory computer-readable storage medium comprising instructions that, when executed on a network server, cause a processor to perform the steps of:
- via a network communication between the network server and a first and a second test unit to be connected toward opposite ends of an optical fiber link comprising a first fiber span and second fiber span to be spliced, each test unit having at least one output port:
- a) triggering each of a first test unit and a second test unit to select a first output port among a plurality of output ports, using its respective optical switch;
- b) triggering at least one of the first test unit and the second test unit to activate its tone generator to produce a tone optical signal toward the at least one output port, at least the other one of the first test unit and the second test unit to detect a presence of a tone signal produced by the tone generator of the opposite test unit and received via the output port in order to test a continuity of the optical fiber link;
- c) sending the result of a continuity test to a wireless portable device used by a splicing technician, whereby the splicing technician can verify that the spliced fiber spans match;
- d) after the splice is completed, triggering a splice quality test toward the optical fiber link, the splice quality test comprising at least one of the first test unit and the second test unit performing an OTDR acquisition toward the output port;
- e) sending the result of the splice quality test to the wireless portable device used by the splicing technician, whereby the splicing technician can verify if a splice is successful;
- and
- f) triggering each of the first test unit and the second test unit to select a second output port among the plurality of output ports, using its respective optical switch and repeating steps b), c) d) and e).
Dependencies are inferred from the claim text.