Patents
US 9360392 B2: Calibration of optical time domain reflectometry optical loss measurement in optical fibers having potentially dissimilar light backscattering efficiencies
- Granted
- 2016-06-07
- Filed
- 2013-06-28 application 13930492
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Calibration of optical time domain reflectometry optical loss measurement in optical fibers having potentially dissimilar light backscattering properties is disclosed. For example, an optical time domain reflectometer (OTDR) can be employed to perform a single-ended optical loss measurement on an optical fiber before and after joinder (e.g., a splice) to determine the efficiency of the joinder. The individual optical fibers provided in a joined optical fiber may have dissimilar backscatter light collection efficiencies resulting in an erroneous OTDR optical loss measurement, because an OTDR assumes the backscatter light collection efficiency of the joined optical fiber is identical before and after joinder. An OTDR calibration factor is first determined before an OTDR optical loss measurement of the joined optical fiber is made. The OTDR calibration factor is used to correct any error in an OTDR optical loss measurement of the joined optical fiber.
Source: PVGPATDIS, file of 2026-04-10 (ipg160607.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Corning Cable Systems LLC 477 patents | US company or organization | Hickory, NC | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Seldon David Benjamin | Corning, NY | 35 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01M | Testing static or dynamic balance of machines or structures; testing of structures or apparatus, not otherwise provided for | G01M11/3145 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2016-09-23 | Name change Change of name | CORNING CABLE SYSTEMS LLC signed 2014-01-14 | CORNING OPTICAL COMMUNICATIONS LLC HICKORY, NC | 40126/818 | PASDL, file of 2026-10-15 |
| 2013-06-28 | Assignment Assignment of assignor's interest | BENJAMIN, SELDON DAVID signed 2013-06-28 | CORNING CABLE SYSTEMS LLC HICKORY, NC | 30709/741 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.