High-order mode filter
US-9201196-B2 · Dec 1, 2015 · US
Multipath channel for optical subcarrier modulation
US8958703B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8958703-B2 |
| Application number | US-201113182513-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 14, 2011 |
| Priority date | Mar 4, 2011 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
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In a representative embodiment, a multipath channel and an optical subcarrier modulation scheme are designed in concert to cause different modulated subcarriers of the optical communication signal to become substantially uncorrelated over the aggregate signal bandwidth. Provided that the employed FEC code has sufficient error-correcting capability for average channel conditions, breakdowns in the operation of the FEC decoder and the corresponding system outages can substantially be avoided.
First claim
Opening claim text (preview).
What is claimed is: 1. An apparatus, comprising an optical channel configured to transport, via a plurality of signal-propagation paths, a first modulated optical signal having N modulated subcarriers, wherein a ratio of a bandwidth of the first modulated optical signal to a coherence bandwidth of the optical channel is larger than or about equal to N, where N is a positive integer greater than one, wherein: the optical channel comprises a multimode optical fiber; and a group de…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- G02B6/14Primary
Physics · mapped topic
- H04J14/052Primary
Electricity · mapped topic
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- What does patent US8958703B2 cover?
- In a representative embodiment, a multipath channel and an optical subcarrier modulation scheme are designed in concert to cause different modulated subcarriers of the optical communication signal to become substantially uncorrelated over the aggregate signal bandwidth. Provided that the employed FEC code has sufficient error-correcting capability for average channel conditions, breakdowns in t…
- Who is the assignee on this patent?
- Winzer Peter J, Foschini Gerard J, Alcatel Lucent
- What technology area does this patent fall under?
- Primary CPC classification G02B6/14. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 17 2015 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).