1. Advances in low-loss, large-area, and multicore fibers Ming-Jun Li and Tetsuya Hayashi 2. Chip-based frequency combs for wavelength-division multiplexing applications Juned N. Kemal, Pablo Marin-Palomo, Maxim Karpov, Miles H. Anderson, Wolfgang Freude, Tobias J. Kippenberg and Christian Koos 3. Nanophotonic Devices for Power-Efficient Communications You-Chia Chang and Michal Lipso 4. Foundry capabilities for photonic integrated circuits Michael Liehr, Moritz Baier, Gloria Hoefler, Nicholas M. Fahrenkopf, John Bowers, Richard Gladhill, Peter O'Brien, Erman Timurdogan, Zhan Su and Fred Kish 5. Software tools for integrated hotonics James Pond, Gilles S.C. Lamant and Rich Goldman 6. Optical processing and manipulation of wavelength division multiplexed signals Leif Katsuo Oxenløwe, Frederik Klejs, Mads Lillieholm, Pengyu Guan, Francesco Da Ros, Pawel Marcin Kaminski, Metodi Plamenov Yankov, Edson Porto da Silva, Peter David Girouard and Michael Galili 7. Multicore and multimode optical amplifiers for space division multiplexing Yongmin Jung, Shaif-ul Alam, David J. Richardson Siddharth Ramachandran and Kazi S. Abedin 8. Transmission system capacity scaling through space-division multiplexing: a techno-economic perspective Peter J. Winzer 9. High-order modulation formats, constellation design, and digital signal processing for high-speed transmission systems Tianhua Xu, Gabriele Liga and Polina Bayvel 10. High-capacity direct-detection systems Xi Chen, Cristian Antonelli, Antonio Mecozzi, Di Che and William Shieh 11. Visible-light communications (VLC) and light fidelity (LiFi) Harald Haas, Elham Sarbazi, Hanaa Marshoud and John Fakidis 12. R&D advances for quantum communication systems Gerd Leuchs, Christoph Marquardt, Luis L. Sánchez-Soto and Dmitry V. Strekalov 13. Ultralong-distance undersea transmission systems Jin-Xing Cai, Georg Mohs and Neal S. Bergano 14. Intra-data center interconnects, networking, and architectures Saurabh Kumar, George Papen, Katharine Schmidtke and Chongjin Xie 15. Innovations in DCI transport networks Loukas Paraschis and Kannan Raj 16. Networking and routing in space-division multiplexed systems Dan M. Marom, Roland Ryf and David T. Neilson 17. Emerging optical communication technologies for 5G Xiang Liu and Ning Deng 18. Optical interconnection networks for high-performance systems Qixiang Cheng, Madeleine Glick and Keren Bergman 19. Evolution of fiber access networks Cedric F. Lam and Shuang Yin 20. Information capacity of optical channels Marco Secondini 21. Machine learning methods for optical communication systems and networks Faisal Nadeem Khan, Qirui Fan, Chao Lu and Alan Pak Tao Lau 22. Broadband radio-over-fiber technologies for next-generation wireless systems Jianjun Yu, Xinying Li and Xiaodan Pang