Highly integrated optical modules for >400-G coherent optical links
Small coherent optical transceivers are demanded in metro-area networks and data-center interconnects. Accordingly, required mechanical dimensions of optical components are shrinking. We present two types of highly-integrated optical modules for >400-Gb/s coherent optical links. Our developed wavelength-tunable laser module consists of an ultra-compact DBR/Ring laser chip and PLC-based wavelength locker. The laser module covers the full C-band with narrow linewidth of <100 kHz and fiber output power above 17 dBm. Furthermore, we demonstrate a tiny transmitter-receiver optical sub-assembly that integrates all required optical components according to the Optical Internetworking Forum specifications. The achieved electro-optical and optical-electro bandwidths are >40 GHz.
Furukawa Electric Co., Ltd. (Japan)
Kazuya Nagashima (M’14) was born in Tokyo, Japan, in 1986. He received the B.E. and M.E. degrees from Sophia University, Tokyo, in 2009 and 2011, respectively.,In 2011, he joined Furukawa Electric Co., Ltd. He has worked for development and commercialization of high-spped optical communication modules. Mr. Nagashima is the Mission Fellow of the Japan Institute of Electronics Packaging (JIEP) and a member of IEEE. He received the Best Young Researcher Award in 2015 and the Best Paper Award in 2016 from IEEE CPMT Symposium Japan, and the Best Conference Paper Award from JIEP in 2016.