Optical fiber transmission system with polarization...

Details Optical fiber transmission system with polarization... Optical fiber transmission system with polarization...

H - Electricity

04

B

H04B 10/12 (2006.01) H04B 10/18 (2006.01) H04J 14/06 (2006.01)

Patent

CA 2342538

A technique for suppressing stimulated Brillouin scattering SBS along an optical fiber signal path utilizes polarization modulation at the transmitter to split the launched power into orthogonal polarization states. By reducing the power along each polarization, SBS will be reduced. Linewidth broadening of the optical source is achieved by introducing: (1) a incoherence between the polarization states (using a time delay along the signal path of one polarization state); and (2) a frequency shift between the polarization states (using an acousto-optic modulator along the signal path of the remaining polarization state).

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