摘要
报道了GaAs2×2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.
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 3dB coupler with good performance is obtained. The device operating at λ = 1.15μm has a 12V Switching voltage and a crosstalk ratio less than - 22.4db. This kind of switch will find application in the switching arrays.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1992年第11期1043-1048,共6页
Acta Optica Sinica
