Optical communications – Transmitter – Including compensation
Reexamination Certificate
2008-07-22
2008-07-22
Tran, Dzung D (Department: 2613)
Optical communications
Transmitter
Including compensation
C398S188000, C398S195000
Reexamination Certificate
active
10128823
ABSTRACT:
Disclosed is a technique for compensating for optical passband shift of an optical component (for example an optical demultiplexer). A broadband source coupled to a dispersive element generates a chirped pulsed optical signal. Data is modulated onto particular wavelengths of the chirped pulsed optical signal by appropriately synchronizing a data modulator. The modulated signal is transmitted to the downstream optical demultiplexer, which may be subject to passband shift due to, for example, changes in environmental conditions. A feedback signal from an output port of the demultiplexer is provided to the transmitter and is used to phase shift the modulator. The phase shift results in effectively adjusting the wavelength onto which the data is modulated to substantially correspond to the passband centers of the demultiplexer.
REFERENCES:
patent: 5805321 (1998-09-01), Ooi et al.
patent: 6239897 (2001-05-01), Jackson
patent: 6301031 (2001-10-01), Li
patent: 6304350 (2001-10-01), Doerr et al.
patent: 7006769 (2006-02-01), Kawasaki et al.
patent: 2003/0175037 (2003-09-01), Kimmitt et al.
patent: 2004/0208635 (2004-10-01), Sinsky
Matthews Manyalibo Joseph
Xu Chunhui
Lucent Technologies - Inc.
Tran Dzung D
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