Transient gain cancellation for optical amplifiers
US-9509113-B2 · Nov 29, 2016 · US
Burst mode rare earth-doped fiber amplifier
US9019591B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9019591-B2 |
| Application number | US-53078408-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 12, 2008 |
| Priority date | Mar 12, 2007 |
| Publication date | Apr 28, 2015 |
| Grant date | Apr 28, 2015 |
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Abstract
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It is an object of the present invention to provide a rare earth doped fiber whose transient response is suppressed and an optical amplifier for optical packet communication having a good characteristic even if there is little traffic. The above-mentioned problem is solved by an optical amplifier for optical packet communication comprising a first rare earth doped fiber (EDFA) having an active region whose diameter is between 3.4 μm and 10 μm, inclusive, an intermediate gain equalizing filter, and a second EDF, wherein the first EDFA is shorter than the second EDFA, and wherein the intermediate gain equalizing filter adjusts the intensity of each wavelength channel so as to equalize the light intensity of each wavelength channel having transmitted through the second EDF.
First claim
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The invention claimed is: 1. A method for amplifying an intensity of an optical packet signal using an amplifier for optical packet communication comprising a rare earth doped fiber having an active region whose diameter is between 6 μm and 10 μm, inclusive, the length of the rare earth doped fiber being between 1 m and 3 m, inclusive, the numerical aperture of the rare earth doped fiber is less than or equal to 0.2, the method comprising the steps of: inputting an optical packet…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04B10/296Primary
Electricity · mapped topic
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- What does patent US9019591B2 cover?
- It is an object of the present invention to provide a rare earth doped fiber whose transient response is suppressed and an optical amplifier for optical packet communication having a good characteristic even if there is little traffic. The above-mentioned problem is solved by an optical amplifier for optical packet communication comprising a first rare earth doped fiber (EDFA) having an a…
- Who is the assignee on this patent?
- Awaji Yoshinari, Furukawa Hideaki, Wada Naoya, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification H04B10/296. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 28 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).