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All-optical circular shift register based on semiconductor optical amplifiers

机译:基于半导体光放大器的全光圆移位寄存器

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We present a new and potentially integrable scheme to realize an all-optical circulating shift register consisting of a fiber-loop based optical buffer (OB) and an optical AND gate. The OB is implemented using semiconductor optical amplifier as a nonlinear element and the AND gate is realized by means of four wave mixing effect in a semiconductor optical amplifier. The operation of the shift register has been verified for a 10-bit input sequence at a sequence bit rate of 2.5 GHz and 10 GHz respectively. The simulation results show that BER = 10~(-9) is achieved at optical signal-to-noise (OSNR) ratio of 16dB at the shift register output. The dependence of the output quality factor (Q-factor) on SOA parameters is also investigated and discussed.
机译:我们提出了一种新的并且可能是可集成的方案,以实现由基于光纤环路的光缓冲器(OB)和“与”门构成的全光循环移位寄存器。 OB是使用半导体光放大器作为非线性元件来实现的,而与门是通过半导体光放大器中的四波混频效应来实现的。已针对10位输入序列分别以2.5 GHz和10 GHz的序列比特率验证了移位寄存器的操作。仿真结果表明,在移位寄存器输出端,光信噪比(OSNR)为16dB时,BER = 10〜(-9)。还研究和讨论了输出质量因子(Q因子)对SOA参数的依赖性。

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