Silicon Photonic 16 × 16 Cyclic AWGR for DWDM O-Band Interconnects
Konstantinos Fotiadis, Stelios Pitris, Miltiadis Moralis‐Pegios, Charoula Mitsolidou, Peter De Heyn, Joris Van Campenhout, R.G. Broeke, T. Alexoudi, Nikos Pleros
Abstract
In this article, we present for the first time to our knowledge, a DWDM 16 × 16 silicon photonic cyclic-frequency AWGR device. The AWGR features a channel spacing of 1.06 nm (189 GHz), a free spectral range of 17.80 nm (3.16 THz) and a 3-dB channel bandwidth of 0.65 nm (116 GHz). Its proper cyclic-frequency operation was experimentally verified for all 16 × 16 channels with channel peak insertion loss values in the range of 3.90 dB to 8.37 dB, yielding a channel loss non-uniformity of 4.47 dB. Its compact footprint of 0.27 mm × 0.71 mm and its low crosstalk value of 21.65 dB highlight its potential for employment in future AWGR-based interconnect schemes in O-band.