Optical and semiconductor supplier M/A-COM Technology Solutions (MACOM), has unveiled a linear externally modulated laser (EML) driver IC that is designed to enable 400G optical modules based on higher-order modulation formats.

The MAOM-003115 is a compact and high-bandwidth linear EML driver which can deliver up to 2Vpp single-ended output. This surface mount device offers variable gain control and excellent linearity over the operating range. The driver has been used to demonstrate a 400Gbps link over 2km of singlemode fibre using four wavelengths, each running at 100Gbps.