Integrated TOSA with High-Speed EML Chips for up to 400 Gbit/s Communication

摘要

Optical transceivers for high-speed transmission at more than 100Gbit/s have been downsized and implemented at increasingly high density. We have developed a new compact optical transmitter that consists of a low-coupling-loss optical multiplexer and four distributed feedback lasers with integrated electro-absorption modulators. This transmitter can be installed into QSFP28 to enable transmission at 100 Gbit/s up to 40 km and also used for 200 and 400 Gbit/s systems. This paper presents the design and performance of the transmitter.