Mach Zehnder interferometer optical switch using phase-change material
Mach Zehnder interferometer optical switch using phase-change material
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发表时间：
2012-12
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通讯作者：
Paridhi Jain;D. Tanaka;H. Tsuda
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作者：
Paridhi Jain;D. Tanaka;H. Tsuda
我们通过在 MZI 的两个臂上沉积低损耗 GeTe 相变材料 (PCM) 薄膜，报告了一种小型自保持 2×2 马赫曾德尔干涉仪 (MZI) 型光开关。交叉状态下的损耗和串扰分别为0.5dB和-34dB，条形状态下的损耗和串扰分别为3.45dB和-10.3dB。在交叉状态和条形状态下分别获得超过13 dB和31 dB的消光比。所提出的开关的工作波长范围为 80 nm。
We report a small, self-holding 2×2 Mach Zehnder Interferometer (MZI) type optical switch by depositing a thin film of low-loss GeTe phase-change material (PCM) on both arms of the MZI. The loss and crosstalk in cross state were 0.5 dB and -34 dB and in the bar state 3.45 dB and -10.3 dB respectively. Extinction ratio of more than 13 dB and 31 dB is obtained in the cross and bar states respectively. The proposed switch has operating wavelength range of 80 nm.