Synchronous polarization and phase modulation for improved perfo

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

1999-02-09

2000-05-02

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359156, 359158, H04B 1004

Patent

active

060579501

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.

REFERENCES:
patent: 5473458 (1995-12-01), Mamyshev et al.
patent: 5526162 (1996-06-01), Bergano
patent: 5912755 (1999-06-01), Bergano
patent: 5946119 (1999-08-01), Bergano et al.

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