16 March 2018
MACOM launches single- and quad-channel linear EML 53Gbaud driver family for 100G and 400G PAM-4 applications
© Semiconductor Today Magazine / Juno PublishiPicture: Disco’s DAL7440 KABRA laser saw.
At the Optical Networking and Communication Conference & Exhibition (OFC 2018) in San Diego (13-15 March), MACOM Technology Solutions Inc of Lowell, MA, USA (which makes semiconductors, components and subassemblies for RF, microwave, millimeter-wave and lightwave applications) has launched the MAOM-005311 and MAOM-005411 single- and quad-channel linear externally modulated laser (EML) drivers for 53 Gbaud PAM-4 (4-level pulse amplitude modulation) applications. The family of surface-mount drivers enables 100Gbps per lambda with low power and high bandwidth for 100G/400G data-center applications.
As demand for solutions to lower cost-per-bit modules continues, the ability to send 100Gbps on a single wavelength using PAM-4 modulation at 53Gbaud provides module vendors with significant cost reductions by reducing the number of optical components by a factor of four, says MACOM. The firm’s EML driver family is claimed to be the first solution of its kind to market, utilizing innovative design and advanced semiconductor and packaging technology aimed at providing the optimal high-performance, integrated solution.
“These devices, coupled with the MATA-005817 and MATA-003819 TIAs, are key to enabling the next generation of PAM-4 optical connectivity for data-center applications,” believes Ray Moroney, VP & business line manager, Networks, at MACOM.
The MAOM-005311 and MAOM-005411 feature differential inputs to provide common-mode rejection, while the single-ended output voltage can be adjusted up to 1.8Vpp. The devices provide 6dB of gain control range with an integrated peak detector on each channel for closed-loop control. Available as a surface-mount package, the solution integrates the high-frequency chokes and coupling capacitors for bias of the driver and EML.