Synchronous polarization and phase modulation for improved...

Details Synchronous polarization and phase modulation for improved... Synchronous polarization and phase modulation for improved...

H - Electricity

04

B

H04B 10/145 (2006.01) H04B 10/135 (2006.01)

Patent

CA 2156759

A method and apparatus is provided for modulating the polarization of an optical signal. A polarization modulator receives an optical signal onto which data has been modulated at a predetermined frequency. The polarization modulator modulates the state of polarization of the optical signal at a frequency phase locked and equal to the same predetermined frequency at which the data is modulated onto the optical signal. The polarization modulation is performed so that the averagevalue of the state of polarization over each modulation cycle is substantially equal to zero.

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