Compact Hybridly Integrated 10$\,\times\,$ 11.1-Gb/s DWDM Optical Receiver

We report on a 10 × 11.1-Gb/s optoelectronic multiwavelength receiver with 100-GHz channel spacing and 14-dBm per-channel sensitivity. The device uses hybrid integration of separately optimized elements to achieve high optical sensitivity. A novel micromachined optical turning mirror has been developed to simplify the fabrication and assembly of the receiver.