Raman amplification system utilizing bi-directional pumping

Optical: systems and elements – Optical amplifier – Raman or brillouin process

Reexamination Certificate

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C359S337000

Reexamination Certificate

active

07054060

ABSTRACT:
In an optical transmission system utilizing bi-directional Raman amplification, propagation directions and wavelengths of Raman pumps are chosen such that four-wave mixing products among the pump wavelengths are minimized in a signal wavelength region.

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R.E. Neuhauser et al., “Impact of nonlinear pump interactions on broadband distributed Raman amplification”, Optical Fiber Communication Conference 2001, Technical Digest, pp. MA4-1 to MA4-3.

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