Zhang Zhonglai, Hu Xiao, Wang Jian
Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China.
Sci Rep. 2015 Nov 4;5:16072. doi: 10.1038/srep16072.
We present an on-chip optical mode exchange between two multiplexed modes by using tapered directional couplers on silicon-on-insulator platform. The device consisting of mode multiplexing and mode exchange is compact with relatively large fabrication error tolerance. The simulation results show efficient higher order mode excitation and mode exchange. A low excess loss less than 0.5 dB and high extinction ratio larger than 15 dB over 10 nm wavelength range from 1535 to 1545 nm are achieved.
我们通过在绝缘体上硅平台上使用锥形定向耦合器，展示了两种复用模式之间的片上光学模式交换。由模式复用和模式交换组成的器件结构紧凑，具有相对较大的制造误差容限。仿真结果表明实现了高效的高阶模式激发和模式交换。在1535至1545nm的10nm波长范围内，实现了小于0.5dB的低额外损耗和大于15dB的高消光比。
