Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1997-06-25
1998-12-29
Hellner, Mark
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359194, H04B 1126
Patent
active
058547045
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.
REFERENCES:
patent: 5331452 (1994-07-01), Smyth et al.
patent: 5335109 (1994-08-01), Heidemann
patent: 5386311 (1995-01-01), Shields
patent: 5555119 (1996-09-01), Lewis
H. Nakano et al, "High-gain 10 Gbit/s 3R optical repeater with direct clock extraction", IOOC-ECOC '91, 17th European Conference On Optical Communication, vol. 1, No. WEA9-5, 9-12 Sep. 1991, Paris, pp. 513-516.
Patent Abstracts of Japan, vol. 96, No. 001 corresponding to JP 08 108505 A (Nippon Telegr & Telph Corp) 19 Jan. 1996.
Alcatel Submarine Networks
Hellner Mark
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