• Why 5G Wireless Will Leverage High-Speed Optical Networks and Machine Learning

    At this year’s Optical Fiber Conference (OFC) in San Diego, CA, we saw how advances in cognitive Software-Defined Networking (SDN) and fiber-optic electronics are enabling the rollout of 5G mobile wireless, which in turn will deliver new services such as augmented reality, drones, industrial IoT, self-driving vehicles and massive connectivity. OFC is an annual conference sponsored by two IEEE societies: the IEEE Communications Society and the IEEE Photonics Society, as well as the Optical Society. This year’s event brought together 15000 attendees and nearly 700 exhibitors, who showcased the latest products in the growing optical-network infrastructure market, along with SDN solutions. This year’s show highlighted the convergence of electronic, optical and wireless technologies that will support the growth in connectivity and network traffic over the coming decade. New services like self-driving vehicles demand higher capacity in the fronthaul, backhaul and metropolitan optical networks that connect 5G wireless access points with data centers. Alex Jinsung Choi, a senior vice president at Deutsche Telekom, explained at OFC that “5G network operators must deliver 100Gb/s connectivity to the base station to support the…

    April 23, 2019 1 0 9
  • 50G PAM4-based Optical Transceiver Technologies

    With the PAM4 encoding technology, the amount of information transmitted on 50G PAM4-based optical transceivers within each sampling cycle doubles. A 25G optical component can be used to achieve a 50Gbps transmission rate, reducing the costs of optical transceivers. 50G PAM4 applies to multiple scenarios, such as single-lane 50GE PAM4 optical transceivers, 4-lane 200GE optical transceivers, and 8-lane 400GE optical transceivers. Functions This section introduces the functions of a single-lane 50GE PAM4 optical transceiver. The working principle of a 50GE PAM4 optical transceiver is described as follows: In the transmit direction, the PAM4 encoding chip aggregates two 25Gbit/s NRZ signals into one 25GBaud PAM4 signal. The laser drive chip amplifies the PAM4 signal, and the 25Gbps laser converts the electrical signal into a 25GBaud(50Gbps) single-wavelength optical signal. In the receive direction, the detector converts the 25GBaud single-wavelength optical signal into an electric signal. The electric signal is shaped and amplified, and then output to the PAM4 decoding chip. The PAM4 decoding chip converts the signal into two 25Gbps NRZ signals. The 50GE PAM4 optical transceiver uses the QSFP28 encapsulation mode, LC optical interfaces,…

    April 11, 2019 0 0 10
  • QSFP-DD Might Be the Mainstream Form-factor of 400G Optical Transceivers

    Time to enter 2019, when 400G has become a hot topic in the optical communications industry, the world’s leading optical transceiver manufacturers have launched their own 400G optical modules. When we list the form-factors of these manufacturers’ 400G optical modules (as shown in the figure below), we found that all the manufacturers except the Finisar (acquired by II-VI) have adopted the QSFP-DD form-factor — the market seems to have recognized QSFP-DD as the first choice for form-factors of 400G optical modules, though some manufacturers have also introduced 400G optical modules with OSFP and CFP8 form-factors. 400G Form-factors of Mainstream Optical Transceivers Manufacturers Tips: QSFP-DD is a high-speed pluggable module form-factor defined by the QSFP-DD MSA group. The QSFP-DD MSA group has defined the next generation, high-density, high-speed pluggable module form factor that addresses the industry need for high-density, high-speed networking solutions in a backward compatible form factor. The QSFP-DD Specification has been developed and refined by many companies within the QSFP-DD MSA group and released to the public. Why do mainstream manufacturers choose the QSFP-DD form-factor? Does this mean that the…

    March 6, 2019 1 0 11
  • 400G Optical Transceiver at a Glance

    The broad market prospect of the 400G optical transceiver has become the consensus of the communications industry. Therefore, many optical devices and optical transceiver manufacturers have increased their investment in this area. This article mainly analyzes the driving forces of 400G optical transceivers market and the applications of 400G optical transceivers.

    December 25, 2018 0 0 5
  • The Global Optical Transceiver Market Is Striding to 200G/400G

    The demand for higher speed, couple with the prevalence of cloud computing, Internet of Things (IoT) and virtual data center, has driven the prosperity of optical transceiver market. Optical transceiver, Direct Attach Cable (DAC) and Active Optical Cable (AOC) have evolved dramatically to catch leading edge broadband network capacity. The past decades have witnessed massive adoption of optical transceivers with data rates ranging from 1G, 10G and 25G, to 40G and 100G, while higher-speed — 200G/400G is just on the horizon. The sales of optical components grows steadily and is expected to continue in the years to come. Mature Data Center — 10G, 25G, 40G and 100G As network gets faster and virtualization gradually becomes the norm, data center is undergoing a major transformation. The trend emerges in the industry signifies a migration toward higher speed transceivers and better service. These transceivers are driving revenue growth which suggests a strong market. The global optical transceiver market is anticipated to reach to $9.9 billion by 2020, driven by the widespread use of 10G, 25G, 40G and 100G optics, and with the biggest sales forecasted for…

    November 16, 2018 1 0 2

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