Use of a photonic crystal for optical amplifier gain control

Optical: systems and elements – Optical amplifier

Reexamination Certificate

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C359S344000, C359S359000, C359S248000

Reexamination Certificate

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07079309

ABSTRACT:
An optical amplifier having a uniform gain profile uses a photonic crystal to tune the density-of-states of a gain medium so as to modify the light emission rate between atomic states. The density-of-states of the gain medium is tuned by selecting the size, shape, dielectric constant, and spacing of a plurality of microcavity defects in the photonic crystal. The optical amplifier is particularly useful for the regeneration of DWDM signals in long optical fibers.

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