Transmission line protection using traveling waves in optical ground wire fiber
US-9509399-B2 · Nov 29, 2016 · US
Method and apparatus for calculating nonlinear transmission impairment of optical fiber link
US9525481B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9525481-B2 |
| Application number | US-201414580989-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 23, 2014 |
| Priority date | Jun 28, 2012 |
| Publication date | Dec 20, 2016 |
| Grant date | Dec 20, 2016 |
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Abstract
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The present invention relates to the field of network communications and discloses a method for calculating a nonlinear transmission impairment, including: determining that no pump channel exists in an optical fiber link, obtaining a factor of intra-band nonlinear noise that does not pass through an optical filter, and obtaining integral power in signal light bandwidth of a span; correcting the factor of intra-band nonlinear noise that does not pass through an optical filter, to obtain a factor of intra-band nonlinear noise of the span that passes through an optical filter; calculating nonlinear noise of the span; and obtaining total nonlinear noise of the optical fiber link according to the nonlinear noise of the span, and obtaining a nonlinear transmission impairment of the optical fiber link. Embodiments of the present invention further provide an apparatus for calculating a nonlinear transmission impairment of an optical fiber link.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: determining that no pump channel exists in an optical fiber link, obtaining a factor of intra-band nonlinear noise that is in the optical fiber link and does not pass through an optical filter, and obtaining integral power in signal light bandwidth of a span in the optical fiber link; correcting the factor of intra-band nonlinear noise that does not pass through the optical filter, to obtain a factor of intra-band nonlinear noise of th…
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Classifications
- H04B10/0791Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04B10/0795Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9525481B2 cover?
- The present invention relates to the field of network communications and discloses a method for calculating a nonlinear transmission impairment, including: determining that no pump channel exists in an optical fiber link, obtaining a factor of intra-band nonlinear noise that does not pass through an optical filter, and obtaining integral power in signal light bandwidth of a span; correcting the…
- Who is the assignee on this patent?
- Huawei Tech Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04B10/0791. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 20 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).