Using sets of OTDR receive fibers with different lengths of marker events to verify optical fiber connectivity
AssigneeAFL Telecommunications LLC
InventorsChris Blair, Scott Prescott, Tim Piper
Life of this patent
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Abstract
A test receiver for use with an Optical Time Domain Reflectometer (OTDR), including a first receive fiber having a first attribute, and a second receive fiber having a second attribute different from the first attribute. The attributes may be lengths, marker events, or both. This configuration reduces the number of times an OTDR operator must travel back and forth between cable ends when testing fibers.
Claims15
A test receiver for use with an Optical Time Domain Reflectometer (OTDR), comprising:
- a housing;
- a first receive fiber having a first length disposed within the housing;
- and
- a second receive fiber disposed within the housing and having a second length different from the first length,
- wherein a first end of the first receive fiber and a first end of the second receive fiber each terminate at an outer side of the housing,
- wherein the first end of the first receive fiber and the first end of the second receive fiber are optically connected to test optical fibers and are optically connected to an optical light source, and
- wherein a second end of the first receive fiber and a second end of the second receive fiber are the reflecting ends of a test receiver.
A test receiver for use with an Optical Time Domain Reflectometer (OTDR), comprising:
- a housing;
- a first receive fiber having a first length disposed within the housing;
- and
- a second receive fiber disposed within the housing and having a second length different from the first length,
- wherein a first end of the first receive fiber and a first end of the second receive fiber each terminate at an outer side of the housing,
- wherein a second end of the first receive fiber and a second end of the second receive fiber are not connected to an optical light source, and
- wherein the first receive fiber includes a first marker event, and the second fiber includes a second marker event.
A test receiver for use with an Optical Time Domain Reflectometer (OTDR), comprising:
- a housing;
- a first receive fiber having a first length disposed within the housing;
- and
- a second receive fiber disposed within the housing and having a second length different from the first length,
- wherein a first end of the first receive fiber and a first end of the second receive fiber each terminate at an outer side of the housing,
- wherein a second end of the first receive fiber and a second end of the second receive fiber are not connected to an optical light source, and
- wherein the first and second fibers are wound in a common holder and the first end of at least one of the first and the second fibers extends from the portion that is wound, and is cleaved to form an end-of-fiber marker event.
Dependencies are inferred from the claim text.