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All-Optical Low-Power 2 ,\times, 2 Cross/Bar Switch With a Single Semiconductor Optical Amplifier

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5 Author(s)
C. Porzi ; Scuoal Superire Sant'Anna, Pisa, Italy ; L. Ma ; M. Yao ; L. Poti
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An all-optical 2 × 2 cross/bar switch is demonstrated exploiting nonlinear polarization rotation in a single semiconductor optical amplifier. The proposed architecture allows operation with packets at the same input wavelengths and does not require high-speed clock control pump signals. Bit-error-rate measurements at the switch output ports for both cross/bar configurations and for both cases of one and two packet signals connected to the input ports are performed. A maximum of 2.3 dB of power penalty was observed in the worst case. The switching energy was as low as about 400 fJ per bit at 10 Gb/s.

Published in:

IEEE Photonics Technology Letters  (Volume:22 ,  Issue: 17 )