Spatial solitary wave optical memory
Spatial solitary wave optical memory
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空间孤波光存储器
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
W. Firth
中科院分区：
文献类型：
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作者：
G. S. McDonald;W. Firth
我们对基于部分填充快速非线性介质的单向环形腔的光存储阵列进行了模拟。已经通过数值模拟和解析研究预测了这种谐振腔(由高斯光束泵浦)中自发产生的空间孤立波。2我们通过对两个像素(全光束切换)配置和19位(部分光束切换)孤子阵列中两个非线性符号的比较研究，证明了将这些稳健吸引子用作二进制记忆的基础的可行性。高斯光束可以在几个腔穿越中以其渐近孤立基进行编码，然后在几千次往返行程中完美地保留这一信息，这表明它是一个强有力的非线性存储元件候选者。没有包括材料像素，相反，直接的全光非线性通道定义了每个像素位置。
We present simulations of an optical memory array based on a unidirectional ring cavity partially filled with a fast nonlinear medium. The spontaneous occurrence of spatial solitary waves in such resonators (pumped by Gaussian beams) has already been predicted by numerical simulations1 and analytic studies.2 We have shown the feasibility of using these robust attractors as a basis for binary memory through a comparative study of the two signs of nonlinearity in a two-pixel (whole- beam switching) configuration and with a 19-bit (part-beam switching) solitary array. Gaussian beams can be encoded in their asymptotic solitary basis in just a few cavity transits and subsequently retain this information perfectly over many thousand round trips suggesting a strong candidate for nonlinear memory elements. No material pixellation has been included and, instead, straightforward all-optical nonlinear channeling defines each pixel site.