Optical amplifier

Details Optical amplifier Optical amplifier

H - Electricity

04

B

H04B 10/16 (2006.01) G02F 2/00 (2006.01) H01S 5/50 (2006.01)

Patent

CA 2221693

A semiconductor optical amplifier (A1) has an optical path from its input (3) to its output (4) through an optical amplification region, the path having a length (L) that exceeds lmm. In use, the amplifier is fed at its input with a modulated optical signal that is modulated at a given bit rate, and a target wave, so that the amplifier produces modulation of the target wave according to the modulation of the optical signal. The path length L is selected to be longer than that at which optical saturation occurs. The gain of the amplifier exhibits a -3db bandwidth that extends beyond 20 GHz in respect of the modulation bit rate. The amplifier may also be used for four wave mixing.

Un amplificateur optique (A1) à semiconducteurs présente un trajet optique reliant son entrée (3) et sa sortie (4) par une région d'amplification optique, ce trajet dépassant 1mm de longueur (L). Pendant son utilisation, l'amplificateur reçoit en entrée un signal optique modulé à un débit binaire donné, ainsi qu'une onde cible, de façon à produire une modulation de cette onde cible en fonction de la modulation du signal optique. La longueur de trajet L est choisie de manière à dépasser celle à laquelle intervient la saturation optique. Le gain de cet amplificateur présente à -3db d'une largeur de bande excédant 20 GHz selon le débit binaire de modulation. Cet amplificateur permet aussi un mixage à quatre ondes.

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