基于半导体光放大器的光学向量矩阵乘法器的实现方法

提出了一种基于半导体光放大器(SOA)的光学向量矩阵乘法器(OVMM)的实现方法。与传统的向量矩阵乘法器相比,本文方法采用的是非空间光的实现方案,且SOA的增益补偿作用可对计算所得的光功率进行校正,从而提高计算精度。对提出的方法进行了1×2向量与2×2矩阵乘法运算的实验验证,结果表明可以实现向量矩阵乘法器的运算功能。利用SOA的大范围增益可调特性,可有效提高信号动态范围,利于多路信号间均匀性的改善,且易于集成。

Implementation scheme of SOA-based optical vector-matrix multiplication

In this paper we propose a new scheme that realizes the optical vector-matrix multiplication(OVMM) based on semiconductor optical amplifier(SOA).Compared with classical method,this design is based on non-spatial light architecture and the gain of SOA can compensate for optical loss to improve the computing precision.The scheme is verified experimentally via multiplying of a 1×2 vector by a 2×2 matrix.The results show that the proposed architecture can act as an OVMM.The wide range of gain adjustability provided by SOA can be used to improve the signal uniformity between different channels and thus optimize the dynamical range.It also has the potential to be integrated on a chip.