Grating couplers in thick rib SOI waveguides for TE and TM polarizations
Grating couplers in thick rib SOI waveguides for TE and TM polarizations
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用于 TE 和 TM 偏振的厚肋 SOI 波导中的光栅耦合器
DOI:
10.1117/12.922713
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
S. Janz
中科院分区:
文献类型:
--
作者:
C. Alonso‐Ramos;A. Ortega;R. Halir;L. Zavargo;Í. Molina;P. Cheben;D. Xu;S. Janz
Grating couplers have shown promising performance in terms of coupling efficiency and alignment tolerances as an interface between optical fibers and nanometric silicon-on-insulator (SOI) waveguides. In this paper we review our previous work, where the implementation of a fiber to chip grating coupler in micrometric rib SOI waveguide was demonstrated for the first time, showing measured coupling efficiency of -2.2dB for transverse-electric (TE) polarization. We also propose a new grating design that achieves a calculated coupling efficiency of -2dB for transverse-magnetic (TM) light.