Keysight and Nokia Bell Labs Achieve Record Symbol Rate of 260 GBaud Transmission in Coherent Optical Communications
KEYSIGHT Technologies, Inc. (NYSE: KEYS), a leading technology company that delivers advanced design and validation solutions to help accelerate innovation to connect and secure the world, and Nokia Bell Labs have successfully tested a 260GBaud ultra-high-speed optical signal transmission over 100km of standard single-mode fiber (SSMF) at the European Conference on Optical Communication (ECOC) 2022 in Basel, Switzerland, exceeding the previous record of 220GBaud.
AI, 5G, and IoT applications are driving the demand for more bandwidth. Leveraging high symbol rate systems increases the aggregate per-wavelength information rate to reduce the cost-per-bit in optical systems. A key trend in the telecom industry is the transition to higher symbol rates through integrated optics which reduces the component count, cost, and power consumption.
With the mutual goal of improving network performance and efficiency, Nokia Bell Labs and Keysight combined expertise with other research partners to create the record-breaking demonstration of 260GBaud Dual Polarization Quadrature Phase Shift Keying (DP-QPSK) coherent transmission over 100km single mode Fiber.
Keysight Technologies Solution
The demonstration consisted of Keysight's new 260GSa/s arbitrary waveform generator (AWG) (M8199B), which delivers more than 75GHz bandwidth, and a thin-film lithium niobate I/Q modulator with 110GHz bandwidth. This enables R&D of transmission systems operated with symbol rates up to 260GBaud and achieving net bitrates greater than 2Tbit/s in coherent optical communications.
"Keysight is honored to work with Nokia Bell Labs on achieving 260 GBaud," said Dr. Joachim Peerlings, vice president of Network and Data Center Solutions at Keysight. "The continued proliferation of AI requires new levels of server and network performance that must scale computing resources within reasonable energy bounds. Higher data rates and new modulation formats will be among the enabling technologies for the industry."
"We achieved this outstanding record of maximum symbol rate of 260GBaud by leveraging enabling technologies and the expertise of several partners," said Haïk Mardoyan, senior research scientist, Nokia Bell Labs. "This result is a first milestone to scale long haul data transport systems beyond 2Tbit/s per wavelength. Improving the energy efficiency of transponders is a permanent challenge for the industry."
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本文由Vicky转载自Keysight News，原文标题为:Keysight and Nokia Bell Labs Achieve Record Symbol Rate of 260 GBaud Transmission in Coherent Optical Communications，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。
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