Silicon micro-ring resonator-based generation of all-optical (2×2) Walsh–Hadamard code is proposed. The energy-efficient, ultra-high-speed, and compact nature of micro-ring resonator-based devices is essential for optical computing. Both MATLAB and the Ansys Lumerical finite difference time domain (FDTD) approach are used to implement the generation of all-optical (2×2) Walsh–Hadamard code. The proposed design is simulated at about 260 Gbps. In the recommended circuit, the needed pump power for switching is merely 0.84 mW, which is extremely little in contrast. The “figure of merits” of the proposed design is evaluated through numerical simulation. The obtained contrast ratio and extinction ratio are considerably greater at 25.24 and 14.63 dB, respectively. On the other hand, the achieved amplitude modulation of 0.13 dB is extremely low. The on-off ratio for a single micro-ring resonator is 36.9 dB.

中文翻译：

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使用硅微环谐振器生成全光 Walsh-Hadamard 码

提出了基于硅微环谐振器的全光（2×2）Walsh-Hadamard 码的生成。基于微环谐振器的设备的节能、超高速和紧凑特性对于光学计算至关重要。MATLAB 和 Ansys Lumerical 时域有限差分 (FDTD) 方法均用于实现全光 (2×2) Walsh-Hadamard 代码的生成。所提议的设计在大约 260 Gbps 下进行了仿真。在推荐电路中，开关所需的泵浦功率仅为0.84 mW，相比之下是非常小的。所提出设计的“品质因数”通过数值模拟进行评估。获得的对比度和消光比明显更高，分别为 25.24 和 14.63 dB。另一方面，所实现的 0.13 dB 的幅度调制非常低。单个微环谐振器的开关比为36.9 dB。