A novel 1 x 2 single-mode 1300/1550 nm wavelength division multiplexer with output facet-tilted MMI waveguide

作者：Tsao SL^*; Guo HC; Tsai CW

来源：Optics Communications, 2004, 232(1-6): 371-379.

DOI：10.1016/j.optcom.2003.12.082

• wave optics
• multiplexers
• optical beam splitters
• integrated optics
• interference

In this paper, we design a novel 1 x 2 1300/1550 nm wavelength division multiplexer based on silicon-on-insulator (SOI) substrate. The wavelength division multiplexer has a tilted facet of our designed multimode interference (MMI) region. Tuning the angle of the tilted MMI facet, one can adjust the output wavelength, power ratio and polarization deviations. A design example shows that the insertion loss for 1300 and 1550 nm wavelengths can be reduced to -0.227 and -0.31 dB, respectively. According to the beam-propagation method (BPM) simulation, the crosstalk can be improved to below -22 dB. The polarization-dependent (PDL) loss is 0.033 and 0.01 dB for 1300 and 1550 nm wavelengths without attaching single-mode fiber (SMF), respectively.

• 出版日期2004-3-1