System and method for reducing polarization dependent loss cross-talk effects
AssigneeFujitsu Limited
InventorsOlga I Vassilieva, Inwoong Kim
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Abstract
In accordance with the present disclosure a system for reducing polarization dependent loss (PDL) of an optical signal comprises a delay module coupled to one or more PDL inducing network elements of an optical network. The delay module is configured to time interleave a first polarization component with respect to a second polarization component of the optical signal. The time interleaving reduces interference caused by cross-talk components associated with the first and second polarization components and induced by the PDL of the PDL inducing elements.
Claims14
A system for reducing polarization dependent loss (PDL) of a wavelength division multiplexed (WDM) optical signal that includes a plurality of channels, the system comprising:
- a multi-wavelength polarization controller (MPC) configured to independently adjust a polarization orientation of each channel of the WDM signal to allow for time interleaving of a first polarization component of each channel with respect to a second polarization component of each channel;
- and
- a delay module optically coupled to the MPC and to one or more PDL inducing network elements of an optical network, the delay module configured to time interleave the first polarization component with respect to the second polarization component of the each channel to reduce interference caused by cross-talk components associated with the first and second polarization components and induced by the PDL of the PDL inducing elements.
A method for reducing polarization dependent loss (PDL) of a wavelength division multiplexed (WDM) optical signal that includes a plurality of channels, the method comprising:
- independently adjusting a polarization orientation of each channel of the WDM signal using a multi-wavelength polarization controller to allow for time interleaving of a first polarization component of each channel with respect to a second polarization component of each channel;
- and
- delaying, by a delay module, a first polarization component with respect to a second polarization component to time interleave the first polarization component with respect to the second polarization component of each channel to reduce interference caused by cross-talk components associated with the first and second polarization components and induced by the PDL of the PDL inducing elements.
Dependencies are inferred from the claim text.