Method of demodulating a phase modulated optical signal
US-9219551-B2 · Dec 22, 2015 · US
Multimode optical fiber systems with adjustable chromatic modal dispersion compensation
US8958675B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8958675-B2 |
| Application number | US-201313833769-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 15, 2013 |
| Priority date | Jul 12, 2012 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 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.
Multimode optical fiber systems with adjustable chromatic modal dispersion compensation are disclosed, wherein the system includes a VCSEL light source and primary and secondary optically coupled multimode optical fibers. Because the VCSEL light source has a wavelength spectrum that radially varies, its use with the primary multimode optical fiber creates chromatic modal dispersion that reduces bandwidth. The compensating multimode optical fiber is designed to have a difference in alpha parameter relative to the primary multimode optical fiber of −0.1≦Δα≦−0.9. This serves to create a modal delay opposite to the chromatic modal dispersion. The compensation is achieved by using a select length of the compensating multimode optical fiber optically coupled to an output end of the primary multimode optical fiber. The compensating multimode optical fiber can be configured to be bend insensitive.
First claim
Opening claim text (preview).
What is claimed is: 1. A multimode optical fiber system for use with a VCSEL light source having transverse modes of different wavelength, comprising: a primary multimode optical fiber having a length L1 and having a first relative refractive index profile with a first alpha value α 40 generally configured to provide for a minimum amount of intermodal dispersion of guided modes at a peak wavelength λ P40 , wherein the different wavelengths of the transverse modes create chromatic…
Assignees
Inventors
Classifications
- H04B10/2513Primary
Electricity · mapped topic
Physics · mapped topic
Electricity · mapped topic
- G02B6/02261Primary
Physics · mapped topic
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 US8958675B2 cover?
- Multimode optical fiber systems with adjustable chromatic modal dispersion compensation are disclosed, wherein the system includes a VCSEL light source and primary and secondary optically coupled multimode optical fibers. Because the VCSEL light source has a wavelength spectrum that radially varies, its use with the primary multimode optical fiber creates chromatic modal dispersion that reduces…
- Who is the assignee on this patent?
- Corning Inc
- What technology area does this patent fall under?
- Primary CPC classification H04B10/2513. Mapped technology areas include Electricity.
- 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).