Abstract

Reflective SOA (RSOA) is an optical switch. Using this switch, we have designed and analyzed an all-optical latch circuit. We used cross gain modulation (XGM) and simulated verification by Matlab. All-optical Latch circuit consists of two RSOA based switches. It has two inputs and two outputs. The simulated output of the latch circuit shows the possibility of various types of applications in optical processing. The operating speed of the all-optical latch circuit is 200 Gbps. We found the values of ER, CR and Q are 54.17 dB, 56.66 dB and 57.76 dB of latch circuit.

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