Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1996-02-08
1999-06-15
Pascal, Leslie
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359156, 359158, H04B 1004
Patent
active
059127554
ABSTRACT:
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 average value of the state of polarization over each modulation cycle is substantially equal to zero.
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Pascal Leslie
Tyco Submarine Systems Ltd.
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