Ultradense Silicon Photonic Interface for Optical Interconnection

作者：Liao Peicheng^*; Sakib Meer; Lou Fei; Park Jongchul; Wlodawski Mitchell; Kopp Victor I; Neugroschl Dan; Liboiron Ladouceur Odile

来源：IEEE Photonics Technology Letters, 2015, 27(7): 725-728.

DOI：10.1109/LPT.2015.2390540

• Multicore fiber array
• bandwidth density
• vertical grating couplers
• silicon photonics
• photonic integrated circuits (PICs)
• optical interconnection

A scalable ultradense silicon photonic interface with 61 compact vertical grating couplers on a pitch of 42.3 mu m is designed and fabricated to match a pitch reducing optical fiber array (PROFA) hexagonal channel pattern. Experimental results show that the designed grating couplers with a minimum insertion loss of 4.5 dB and a 3-dB bandwidth of 50 nm are obtained. The crosstalk between different channels is less than -50 dB and the maximum loss difference across the PROFA interface is similar to 0.7 dB. High-speed data transmission indicates that a bandwidth density as large as 27 Tb/s/mm(2) could be achieved within a footprint of 0.096 mm(2), demonstrating the potential of silicon photonics for broadband optical interconnection.

• 出版日期2015-4-1
• 单位McGill