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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)
Porzi, C. ; Scuoal Superire Sant''Anna, Pisa, Italy ; Ma, L. ; Yao, M. ; Poti, L.
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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:

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

Date of Publication:

Sept.1, 2010

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