半导体光电, 2015, 36 (1): 12, 网络出版: 2015-06-25  

应用于Ⅲ-Ⅴ族半导体光调制器的模斑变换器设计

Design of Spot-size Converter for Ⅲ-Ⅴ Semiconductor Optical Modulators
作者单位
清华大学 信息科学与技术国家实验室(筹), 北京 100084
摘要
半导体光调制器波导的输出模斑通常是直径为2~3μm的椭圆形, 与光纤进行耦合时会因模斑不匹配而产生严重的耦合损耗, 并影响对准容差。为降低光纤与调制器波导的耦合损耗, 同时改善对准容差, 设计了两种应用于光调制器中的模斑变换器(Spot-size Converter), 通过仿真对其传输损耗和模场耦合效率进行了比较, 其中采用混合结构的模斑变换器具有更优的性能。
Abstract
Semiconductor optical modulators generally have an elliptical output mode field with a diameter about 2~3μm. Due to the mode mismatch between the waveguide of a modulator and that of a fiber, a serious coupling loss will be induced along with a small alignment tolerance. To reduce the coupling loss and improve the alignment tolerance, two types of spot-size converters(SSCs) are designed for semiconductor modulators, while their propagation loss and fiber coupling efficiency are compared based on numerical simulations. It is concluded that the hybrid-taper based SSC exhibits superior performance.
参考文献

[1] Dagli N.High-speed Photonics Device[M]. London: Taylor & Francis, 2007.

[2] Den Besten J H,Caprioli D, Pascher W, et al. Simulation and design of a 40GHz mach-zehnder modulator on InP[C]//Proc. of IEEE Symposium on LEOS Benelux Chapter, Amsterdam, 2002: 123-125.

[3] Hou L,Wang W, Zhu H, et al. Monolithically integrated laser diode and electroabsorption modulator with dual-waveguide spot-size converter input and output[J].Semiconductor Science and Technol., 2005, 20(8): 779-801.

[4] Holger K.Integrated InP mach-zehnder modulators for 100Gbit/s ethernet applications using QPSK modulation[D].Heinrich-Hertz-Institut,2010.

[5] Mesel K D.Spot-size converter for photonic integrated circuits, PhD Thesis[D]. Flanders, Belgium:Gent University, 2003.

[6] Moerman I,Van DaeleP P, Demeester P M, A review on fabrication technologiesfor the monolithic integration of tapers with Ⅲ-Ⅴ semiconductor devices[J]. IEEE Journal of Selected Topics in Quantum Electron., 1998, 3(6):1308-1320.

[7] Weinert C M,Design of fiber-matched uncladded rib waveguides on InP with polarization-independent mode matching loss of 1dB[J].Photon. Technol. Lett., 1996, 8(8): 1049-1051.

赵越, 孙长征, 熊兵, 罗毅. 应用于Ⅲ-Ⅴ族半导体光调制器的模斑变换器设计[J]. 半导体光电, 2015, 36(1): 12. ZHAO Yue, SUN Changzheng, XIONG Bing, LUO Yi. Design of Spot-size Converter for Ⅲ-Ⅴ Semiconductor Optical Modulators[J]. Semiconductor Optoelectronics, 2015, 36(1): 12.

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