NeoPhotonics Corporation, a leading designer and manufacturer of advanced hybrid photonic integrated circuit based modules and subsystems for bandwidth-intensive, high speed communications networks, today announced a low power consumption 28 GBaud externally modulated laser (EML) with an integrated driver, which is designed for client side 4×25 NRZ 100G, 4×50 PAM4 200G, and 8×50 PAM4 400G applications. This new EML joins NeoPhotonics family of EML lasers, which are currently shipping in high volume for 100G datacenter and client side applications.
Datacenter operators and service providers are actively deploying client side interface transceivers at 100Gbps and 200Gbps — and moving rapidly towards 400Gbps — leading to ever increasing demands for lower power consumption and smaller form factor components. NeoPhotonics current suite of 28 GBaud EML lasers are a leading technical and commercial solution for 100G client interfaces and are shipping in high volume. In a typical 100G client application, a stand-alone driver is needed between the CMOS-based CDR IC and the EML to provide enough modulation voltage swing to the EML. The driver typically consumes around one watt of electrical power and occupies more than a square centimeter of precious board space inside the 100G transceiver.
NeoPhotonics new 28 GBaud EML integrates a driver, which utilizes NeoPhotonics low power linear GaAs amplifier technology, with NeoPhotonics 28 GBaud EML at the chip-on-carrier, or CoC, level. The CoC assembly fits into a four channel transmitter optical sub-assembly, or Quad TOSA, designed for 100Gbps QSFP28 and CFP4 form factors, eliminating the need for a separate driver on the board. Customers can then directly link the CMOS-based CDR IC to NeoPhotonics’ 28 GBaud CMOS drivable EML, and enjoy the benefits of simplicity, low power consumption, and space savings. In PAM4 applications, the integrated linear driver makes NeoPhotonics’ new CMOS drivable 28 GBaud EML an attractive option for 200Gbps and 400Gbps applications due to the simple and direct connection to the PAM4/CDR IC.
“Our first in the industry CMOS drivable 28GBaud EML simplifies 100G, 200G, and 400G transceiver designs, provides a reliable solution for an EML-based Quad TOSA, and allows a 100G QSFP28 to meet the challenging target power consumption of 3.5W,” said Tim Jenks, Chairman and CEO of NeoPhotonics. “This new product is based on our advanced hybrid photonic integration technology, and integrates our proven Indium Phosphide EML and Gallium Arsenide driver technologies together to achieve significant power and size reductions for the next-generation 100G, 200G, and 400G datacenter and client side applications,” continued Mr. Jenks.
NeoPhotonics CMOS drivable EML is currently being designed into NeoPhotonics next generation client side 100G, 200G and 400G transceivers and will be available to external customers in the second half of 2017. The new EML, along with NeoPhotonics broad suite of products for line and client side 100G and beyond products, will be displayed in Booth #3017 at the OFC Conference and Exhibition in Los Angeles, California, March 21-23, 2017.