Free-space optical WDM communication system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Sep 26, 2002
filing date -
Mar 27, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention provides a free-space optical WDM communication system that couples received channels into an optical fiber to use optical amplifier at the receiver and thereby to increase the transmission distance. The transmitted and received channels are coupled into a free-space and a fiber, respectively, using the same light beam emitting and focusing (LBEF) unit that consists of focusing optical assemblies, beam-to-fiber coupler, and a fiber coupler. The LBEF unit is connected to both transmitter and receiver circuits using an optical circulator or a WDM coupler. The invention includes the use of an amplified spontaneous emission and also provides a free-space optical repeater that amplifies or regenerates free-space WDM channels with an add-drop multiplexing capability during propagation.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully