Optical networks, for 400G and beyond, require flexibility and agility from network elements, especially from coherent transceivers. Higher baud rates are made possible using new electrooptic technologies. Multi-dimensional modulation formats provide improved tolerance to noise and fiber nonlinearities. Constellation shaping further improves these tolerances while allowing a finer granularity in selection of capacity. Frequency division multiplexing also provides improved tolerance to the nonlinear characteristics of fiber. Algorithms with reduced computation complexity allow the implementation at-speed of direct precompensation of nonlinear propagation effects. FlexEthernet and FlexOTN allow network operators to optimize capacity on their optical transport networks.
Kim Roberts, "Flexible optical transceivers," Proc. SPIE 10561, Next-Generation Optical Communication: Components, Sub-Systems, and Systems VII, 1056104 (Presented at SPIE OPTO: January 30, 2018; Published: 29 January 2018); https://doi.org/10.1117/12.2295350.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the conference proceedings. They include the speaker's narration along with a video recording of the presentation slides and animations. Many conference presentations also include full-text papers. Search and browse our growing collection of more than 14,000 conference presentations, including many plenary and keynote presentations.