Crosstalk Spectrum Optimisation for Stacked Wavelength Selective Switches Based on 2D Beam Steering
2018
We report a 4(1×8) WSS prototype using 2D beam steering with minimum insertion loss of 4.7dB and uniform passband step of 1GHz. The worst-case crosstalk was suppressed to <-30dB with optimised spectrum profile for improved OSNR.
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