Multi-stage bidirectional optical amplifier

Optical: systems and elements – Optical amplifier – Optical fiber

Reexamination Certificate

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Reexamination Certificate

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06952308

ABSTRACT:
A multi-stage bidirectional optical amplifier amplifies counter-propagating signals at the same time, and includes two single-stage bidirectional optical amplifiers, two multiple reflection suppression means, and a mid-stage component.

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patent: 2001/0019449 (2001-09-01), Krummrich
patent: 2001/0050804 (2001-12-01), Chung et al.
patent: 0739103 (1996-10-01), None

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