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本文验证了工作波长为1.5μm,依赖于尾纤偏振的全封装Ti:LinbO_3 4×4集成光开关.这种开关矩阵是快速的,其测得的3dB小信号带宽大于1GHz.测量了由开关元件之间的耦合引起的信道间的有害交叉调制,其大小为信号强度的-20dB以下.该开关由平衡桥式开关元件构成,其开关电压为17V,消光比18dB,过量光损耗0.6dB.
This paper verifies the fully encapsulated Ti: LinbO_3 4 × 4 integrated optical switch with working wavelength of 1.5μm and pigtail polarization, which is fast and has a measured 3dB small signal bandwidth greater than 1GHz. Harmonic cross-modulation between channels caused by the coupling between components, the size of which is below -20 dB of the signal strength, consists of a balanced bridge switching element with a switching voltage of 17 V, an extinction ratio of 18 dB and an excess optical loss of 0.6 dB.