A High-Crosstalk Silicon Photonic Arrayed Waveguide Grating
In this paper, we demonstrated a 1 × 4 silicon photonic cascaded arrayed waveguide grating, which is fabricated on a SOI wafer with a 220 nm top Si layer and a 2µm buried oxide layer. The measured on-chip transmission loss of this cascaded arrayed waveguide grating is ~ 5.6 dB, including the fiber-to-waveguide coupling loss. The adjacent crosstalk is 33.2 dB. Compared to the normal single silicon photonic arrayed waveguide grating with a crosstalk of ~ 12.5 dB, the crosstalk of this device has been dramatically increased.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1339151Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1294
 C. Tsai, H. Taga, C. Yang, Y. Lo, and T. Liang, “Demonstration of a ROADM using cyclic AWGs,” Journal of Lightwave Technology 29, pp. 2780-2783, 2011.
 C. R. Doerr, L. W. Stulz, D. S. Levy, L. Gomez, M. Cappuzzo, J. Bailey, R. Long, A. Wong-Foy, E. Laskowski, E. Chen, S. Patel, and T. Murphy, Eight-wavelength add-drop filter with true reconfigurability,” IEEE Photonics Technology Letters 15, pp. 138–140, 2003.
 Q. Fang, F. Li, Y. Liu, “Compact SOI arrayed waveguide grating demultiplexer with broad spectral response,” Optics Communications 258, pp 155-158, 2006.
 X. Tu, T. Liow, J. Song, X. Luo, Q. Fang, M. Yu, and G.Lo, “50-Gb/s silicon optical modulator with traveling-wave electrodes,” Optics Express 21, pp 12776-12782, 2013.
 J. C. Rosenberg, W. M. J. Green, S. Assefa, D. M. Gill, T. Barwicz, M. Yang, S. M. Shank, and Y. A. Vlasov, “A 25 Gbps silicon microring modulator based on an interleaved junction,” Optics Express 20, pp. 26411-26423, 2012.
 Q. Fang, L. Jia, J. Song, A. E. J. Lim, X. Tu, X. Luo, M. Yu, and G. Lo, “Demonstration of a vertical pin Ge-On-Si photo-detector on a wet-etched Si recess,” Optics Express 21, pp. 23325-23330, 2013.
 P. Chaisakul, D. Marris-Morini, J. Frigerio, D. Chrastina, M. Rouifed, S. Cecchi, P. Crozat, G. Isella, L. Vivien, “Integrated germanium optical interconnects on silicon substrates,” Nature Photonics 8, pp. 482-488, 2014.
 Q. Fang, J. Song, X. Luo, M. Yu, G. Lo, and Y. Liu, “Mode-size converter with high coupling efficiency and broad bandwidth,” Optics Express 19, pp. 21588-21594, 2011.
 Q. Fang, J. Song, T. Liow, H. Cai, M. Yu, G. Lo, D. Kwong, “Ultralow power silicon photonics thermo-optic switch with suspended phase arms,” IEEE Photonics Technology Letters 23, pp. 525-527, 2011.
 K. Sasaki, F. Ohno, A. Motegi, T. Baba, “Arrayed waveguide grating of 70 × 60 μm2 size based on Si photonic wire waveugides,” Electronics Letters 41, pp. 801-802, 2005.
 W. Bogaerts, P. Dumon, D. V. Thourhout, D. Taillaert, P. Jaenen, J. Wouters, S. Beckx, V. Wiaux, R. G. Baets, “Compact wavelength-selective functions in silicon-on-insulator photonic wires,” IEEE Journal of Selected Topics in Quantum Electronics 12, pp. 1394-1401, 2006.