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Optik

Entangled photon states generation and regeneration using a nonlinear fiber ring resonator

Preecha P. Yupapin, W. Suwancharoen

Published Jun 10, 2008• 8 citations
Publisher
DOI
10.1016/j.ijleo.2008.03.004

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A new scheme of the entangled photon states re-generation the dynamic simulation of light traveling in nonlinear fiber optic ring resonator incorporating an erbium-doped fiber (EDF) has been investigated. We have shown that the weak entangled photon states can be recovered after circulating in the amplified fiber optic medium. The output entangled photon states can be re-generated by adjusting the polarization controller of the amplified photons, where the re-generated entangled states can be controlled and performed. The ring-cavity lifetime is much longer than the Kerr-effect response time of the fiber ring. The results obtained have shown that this system can be used to achieve the recovered polarization entangled states with the obtained high gain. The amplifying noise has also been detected and seen on the spectrum output. This is affected to the entangled photon visibility, which is discussed.
We investigate a new system of photon-entangled recovery states using a fiber ring resonator incorporating an erbium-doped fiber (EDF). We also show that states of weak entangled photons can be regenerated and recovered after circulating in the amplified fiber optic medium. The output entangled photon states can be regenerated by adjusting the polarization controller of the amplified photons. Results obtained show that such a proposed system can be used to perform the polarization entangled recovery states, and the amplified output gain can be achieved. The amplifying noise is also detected and seen on the spectrum output, which affects the entangled photon output visibility. The change in the system temperature is also investigated, which shows that entangled state walk-off compensation is required to obtain the optimum entangled photon visibility.