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We demonstrate an optical packet switching system based on 8 × 12.5 Gb/s all-optical orthogonal frequency division multiplexing and semiconductor optical amplifier-based switch. The bit-error-rate shows 0.5 dB power penalty due to the switching.
Performance of all-optical flip-flop circuits based on a SOA-MZI is reviewed. Set-reset-type operation and T-type operation will be presented with feedback loop configuration for optical gate signal generation, and a counterfaced one for DPSK encoding, respectively.
We propose an all-optical T-type Flip-Flop for DPSK encoding consisting of counter-faced SOA-based XOR gate for the first time. Numerical simulation reveals the possibility of its stable operation in 10 Gbps.
We introduce a novel modeling of gain profile of MQW-SOAs that takes the variation of gain spectrum with carrier density into account. Simulation results of static and dynamic operation agree well with the experimental ones.
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