Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1993-12-17
1996-06-04
Boudreau, Leo
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359166, 359187, H04B 1000
Patent
active
055238742
ABSTRACT:
An existing proposal to limit jitter and ASE noise generation in an optical soliton transmission system by the use of a concatenation of passive optical filters, each with its centre frequency offset in the same direction with respect to that of its predecessor in the transmission path, is modified by the replacement of the passive filters with active ones. In each active filter a feedback control loop operates to tune the centre frequency of the filter to provide a specific offset with respect to the centre frequency of solitons incident upon it.
REFERENCES:
patent: 5140656 (1992-08-01), Hasegawa et al.
patent: 5276543 (1994-01-01), Olshansky
patent: 5357364 (1994-10-01), Gordon et al.
Boudreau Leo
Negash Kinfe-Michael
Northern Telecom Limited
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