Receiver for optical digital transmission system
AssigneeAlcatel Submarine Networks
InventorGeorges Grandpierre
Life of this patent
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Abstract
A receiver for digital optical signals, in particular in the soliton format, includes an automatic gain control amplifier and photodetectors for converting the optical signals into electrical signals in a data channel and a clock channel. For detecting signals transmitted optically at high bit rates, the automatic gain control amplifier is an optical amplifier and is on the input side of the photodetectors. There are preferably two photodetectors, the first of which is connected to a data processing channel and the second of which is connected to a clock signal recovery channel. This receiver can receive signals at bit rates exceeding 10 Gbit/s.
Claims13
A digital optical receiver including photodetector means for converting optical signals into electrical signals on a data channel and a clock channel and including at least one optical amplifier on the input side of said photodetector means which comprise two photodetectors a first of which is connected to a data processing channel and the second of which is connected to a clock signal processing or recovery channel.
Dependencies are inferred from the claim text.