Optical fiber status detection method, optical supervisory unit, and station
AssigneeHuawei Technologies Co., Ltd.
InventorsTianhai CHANG, Rui HE, Hao LIU
Life of this patent
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Abstract
An optical fiber status detection method includes: alternately sending, by a first station, an optical time domain reflectometer (OTDR) pulse and optical supervisory channel (OSC) data to a second station on a same channel, where the second station is a neighboring station of the first station; and receiving, by the first station, reflection light returned by the OTDR pulse by using an optical fiber between the first station and the second station, and obtaining an OTDR probe value according to the reflection light.
Claims12
An optical fiber status detection method, comprising:
- alternately sending, by a first station, an optical time domain reflectometer (OTDR) pulse and optical supervisory channel (OSC) data to a second station on a same channel, wherein the second station is a neighboring station of the first station;
- receiving, by the first station, reflection light returned by the OTDR pulse by using an optical fiber between the first station and the second station;
- and
- obtaining, by the first station, an OTDR probe value according to the reflection light.
An optical supervisory apparatus, comprising at least:
- an optical time domain reflectometer (OTDR), an optical supervisory channel (OSC) circuit, and a switching controller, wherein:
- the OTDR is configured to send an OTDR pulse, and obtain an OTDR probe value according to received reflection light returned by the OTDR pulse by using an optical fiber between a first station and a second station, wherein the optical supervisory apparatus is located on the first station, and the second station is a neighboring station of the first station;
- the OSC circuit is configured to send first OSC data to the second station and receive second OSC data sent by the second station;
- and
- the switching controller is configured to control the OTDR and the OSC circuit to perform alternate sending of the OTDR pulse and the first OSC data, and forward the second OSC data sent by the second station to the OSC circuit.
A station, comprising at least an optical supervisory apparatus, the optical supervisory apparatus comprising at least:
- an optical time domain reflectometer (OTDR), an optical supervisory channel (OSC) circuit, and a switching controller, wherein:
- the OTDR is configured to send an OTDR pulse, and obtain an OTDR probe value according to received reflection light returned by the OTDR pulse by using an optical fiber between a first station and a second station, wherein the optical supervisory apparatus is located on the first station, and the second station is a neighboring station of the first station;
- the OSC circuit is configured to send first OSC data to the second station and receive second OSC data sent by the second station;
- and
- the switching controller is configured to control the OTDR and the OSC circuit to perform alternate sending of the OTDR pulse and the first OSC data, and forward the second OSC data sent by the second station to the OSC circuit.
Dependencies are inferred from the claim text.