光学学报, 1992, 12 (11): 1043, 网络出版: 2007-09-11
GaAs 2×2 Mach-Zehnder光波导开关调制器
CaAs 2×2 Mach-Zehnder optic waveguide switch/modulator
摘要
报道了GaAs 2×2非对称Mach-Zehnder光波导开关调制器的研制结果,分析了这种开关的工作原理和产生串音的因素.采用两个非对称X型耦合器代替传统的Y分支耦合器,得到了性能良好的X型3dB耦合器.λ=1.15μm时,器件的串音比小于-22.4dB,开关电压约1.2V.
Abstract
This paper reports the research result of GaAg 2×2 asymmetric Mach-Zehnder waveguide switch/modulator. The mechanism of this device and the factors of crosstalk are analyzed. Instead of traditional Y-branches, two asymmetric X-junctions have used in the switch. An 3d B coupler with good performance is obtained. The device operating at λ=1.15 μm has a 12 V Switching voltage and a crosstalk ratio less than -22.4 dB. This kind of switch will find application in the switching arrays.
冯浩, 李锡华, 王明华, 杨佐娅. GaAs 2×2 Mach-Zehnder光波导开关调制器[J]. 光学学报, 1992, 12(11): 1043. 冯浩, 李锡华, 王明华, 杨佐娅. CaAs 2×2 Mach-Zehnder optic waveguide switch/modulator[J]. Acta Optica Sinica, 1992, 12(11): 1043.
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