US 11,838,049 B2
Optical time-domain reflectometer (OTDR) event detection and light power level measurement-based fiber optic link certification
Benoit Morel, Lyons (FR)
Assigned to VIAVI SOLUTIONS INC., Chandler, AZ (US)
Filed by VIAVI SOLUTIONS INC., San Jose, CA (US)
Filed on Nov. 5, 2021, as Appl. No. 17/520,375.
Claims priority of application No. 20306336 (EP), filed on Nov. 5, 2020.
Prior Publication US 2022/0140896 A1, May 5, 2022
Int. Cl. H04B 10/071 (2013.01); H04B 10/079 (2013.01); H04B 10/27 (2013.01)
CPC H04B 10/071 (2013.01) [H04B 10/07955 (2013.01); H04B 10/27 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a power meter, executed by at least one hardware processor, to
perform, at one end of a device under test (DUT) of a network, a light power level measurement;
an optical time-domain reflectometer (OTDR) event detector, executed by the at least one hardware processor, to
perform, at the one end of the DUT, an OTDR measurement to detect at least one event associated with the DUT; and
an event classifier, executed by the at least one hardware processor, to
generate, based on analysis of the light power level measurement and the OTDR measurement, an event classification to classify, as a splitter disposed at a second opposite end of the DUT, the at least one event that was previously identified by the OTDR measurement as an end of the DUT.