Centralized lightwave WDM-PON employing intensity modulated downstream and upstream
US8131156B2 · kind B2 · utility
14Cited by
0References
16Claims
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Assignee
Inventor
Key dates
| Filing date | Sep 22, 2008 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Nov 2, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J2014/0253
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical system and method includes a source-free optical network unit coupled to an optical fiber for receiving a centralized lightwave carrier signal with downstream data over the optical fiber. The optical network unit includes a coupler configured to split the original carrier signal into a first path and a second path. The first path includes an optical filter configured to reduce fading effects of the carrier signal. The second path includes a modulator configured to remodulate the centralized lightwave carrier signal with upstream data to produce an upstream data signal for upstream transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.