论文信息 - Highly efficient crossing structure for silicon-on-insulator waveguides.

Highly efficient crossing structure for silicon-on-insulator waveguides.

A compact waveguide crossing structure with low transmission losses and negligible crosstalk is demonstrated for silicon-on-insulator circuits. The crossing structure is based on a mode expander optimized by means of a genetic algorithm leading to transmission losses lower than 0.2 dB and crosstalk and reflection losses below 40 dB in a broad bandwidth of 20 nm. Furthermore, the resulting crossing structure has a footprint of only 6x6 microm(2) and does not require any additional fabrication steps.

[1] Hiroyuki Tsuda,et al. Low loss, small crosstalk offset crossing structure for large-scale planar lightwave circuits , 2009, IEICE Electron. Express.

[2] M.A. Piqueras,et al. Low-crosstalk in silicon-on-insulator waveguide crossings with optimized-angle , 2007, 2007 4th IEEE International Conference on Group IV Photonics.

[3] Hui Chen,et al. Low-Loss Multimode-Interference-Based Crossings for Silicon Wire Waveguides , 2006, IEEE Photonics Technology Letters.

[4] Toshihiko Baba,et al. Low Loss Intersection of Si Photonic Wire Waveguides , 2004 .

[5] Long Chen,et al. Optical 4x4 hitless slicon router for optical networks-on-chip (NoC). , 2008, Optics express.

[6] Jurgen Michel,et al. Impedance matching vertical optical waveguide couplers for dense high index contrast circuits. , 2008, Optics express.

[7] P. Dumon,et al. Low-loss, low-cross-talk crossings for silicon-on-insulator nanophotonic waveguides. , 2007, Optics letters.

[8] Graham T. Reed,et al. Silicon Photonics: The State of the Art , 2008 .