Coded data generation or conversion – Digital code to digital code converters – To or from nrz codes
Reexamination Certificate
2005-01-11
2005-01-11
Young, Brian (Department: 2819)
Coded data generation or conversion
Digital code to digital code converters
To or from nrz codes
C385S001000, C385S002000
Reexamination Certificate
active
06842125
ABSTRACT:
A conversion method for converting a unipolar voltage data stream into a carrier-suppressed return-to-zero (CSRZ) optical data stream includes modulating a continuous optical wave with an encoded nonreturn-to-zero (NRZ) voltage data stream for providing a CSRZ optical data stream of full-width at half-maximum (FWHM) pulse width less than one-half of the transition time of the encoded nonreturn-to-zero (NRZ) voltage data stream between logical states for a reduced pulse width. The modulating circuit is either a duobinary modulator driven with a swing of ±2Vπor an optical time domain multiplexed plurality of nonreturn-to-zero (NRZ) modulators with phase shifting and differential encoding.
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Mauro John C.
Morasca Salvatore
Pruneri Valerio
Raghavan Srikanth
Agon Juliana
Corning Incorporated
Nguyen John B
Young Brian
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