RAMAN AMPLIFIER
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 29, 2002
Grant Date -
Nov 7, 2002
app pub date -
May 1, 2001
filing date -
May 1, 2001
priority date (Note) -
Granted
status (Latency Note)
Importance
Abstract
A Raman amplifier comprises first and second stages, in which a single pump source is used for both stages. The pump source output is coupled to one end of the second stage and unused pump power is tapped from the other end of the second stage. The unused pump power is then introduced into the first stage. The attenuation of the pump source signal in the second stage results in a lower power pump signal being applied to the first stage. The specific design of the amplifier stages enables the two pump power levels to be suitable for different fiber types so that the advantages of a multi-stage amplifier are maintained (with each stage being designed taking into account the signal powers in the different stages) whilst simplifying the pump source requirements.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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