Optical amplifier

Details Optical amplifier Optical amplifier

2006-05-09

2006-05-09

Keith, Jack (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

C359S337130

Reexamination Certificate

active

07042634

ABSTRACT:
An optical amplifier capable of holding the gain profile of the optical amplifier constant includcs a rare-earth doped optical waveguide serving as an amplification medium, a pump light source for exciting the amplification medium, one or more control light source, a monitor, and a control unit. A control method is also provided for using the amplifier for holding the gain profile of the optical amplifier constant by, for example, controlling the control light source so that the calculated gain is matched with a prescribed value or an externally decided value.

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