Optical transmission system, phase compensation method, and optical reception apparatus
US-2015372766-A1 · Dec 24, 2015 · US
Reducing phase noise associated with optical sources
US9130681B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9130681-B2 |
| Application number | US-201313851574-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 27, 2013 |
| Priority date | Mar 27, 2013 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An optical transmitter may include an optical source to provide a first optical signal having a varying frequency; an optical circuit to receive a portion of the first optical signal and provide a second optical signal corresponding to a change in frequency of the first optical signal; a photodetector to receive the first optical signal and provide an electrical signal that is indicative of the change in frequency of the first optical signal; an integrator to receive the electrical signal and provide an inverted electrical signal; and a controller to process the inverted electrical signal and provide a current, associated with the inverted electrical signal, to the optical source. The optical source may reduce the phase noise associated with the first optical signal based on the current.
First claim
Opening claim text (preview).
What is claimed is: 1. An optical transmitter comprising: an optical source configured to provide a first optical signal, the first optical signal having a varying frequency; an optical circuit configured to receive a portion of the first optical signal and provide a second optical signal corresponding to a change in frequency of the first optical signal, the optical circuit is a 90-degree hybrid circuit; a photodetector configured to receive the second optical signal and p…
Assignees
Inventors
Classifications
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04B10/6165Primary
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9130681B2 cover?
- An optical transmitter may include an optical source to provide a first optical signal having a varying frequency; an optical circuit to receive a portion of the first optical signal and provide a second optical signal corresponding to a change in frequency of the first optical signal; a photodetector to receive the first optical signal and provide an electrical signal that is indicative of the…
- Who is the assignee on this patent?
- Sun Han H, Mcnicol John D, Wu Kuang-Tsan, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H04B10/6165. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 08 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).