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Enterprise Security Magazine | Wednesday, June 05, 2024
In 2023, despite ongoing macroeconomic concerns, optical networking continued to advance, leading to increased capacity, more flexible and energy-efficient transport infrastructure, and simpler network operations. Further advancements and developments are anticipated in 2024, offering new possibilities for network operators and enhancing the connectivity experience for end users.
Fremont, CA: In 2024, the optical networking industry is expected to continue its exciting growth. It is anticipated that the industry will have recovered from the impact of the pandemic, with most supply chain issues resolved. As a result, network operators will be able to shift their focus towards enhancing their networks and creating new services.
Two notable trends are expected to shape the optical networking sector in 2024:
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400G Pluggable Revolution
One of the most significant innovations in 2024 will be the 400G pluggable revolution, which is finally gaining traction in network applications. 400G pluggable deployments have mainly used low output power (-10 dBm) ZR and ZR+ technologies in essential point-to-point fiber data center interconnect (DCI) systems for hyperscalers.
Traditional network operators have slowly adopted 400G pluggables because their networks require a higher-performance pluggable with 0 dBm launch power and incremental operational attributes like direct management, out-of-band noise cancellation, and higher optical signal-to-noise ratio (OSNR). These network-grade pluggables were initially available in 2023 and are expected to experience a considerable increase in deployments in communication service provider (CSP) networks by 2024.
Increasing Fiber Capacity
Another critical development in 2024 is a change in focus toward boosting fiber capacity. Historically, network operators could anticipate a 20-30 percent increase in spectral efficacy with each new generation of coherent optical engines. With sixth-generation unified technology (such as Infinera's ICE6) capable of enabling 800 Gb/s transmission on a single wavelength, the sector has reached the Shannon limit, resulting in relatively moderate spectral efficiency increases (e.g., ~10-20 percent). As a result, network operators will look at different ways to boost the amount of data each fiber can carry.
The most obvious answer is to enhance the available spectrum. Some equipment manufacturers have responded to this request with solutions that increase the valuable spectrum from the expanded C-band (4.8 THz) to the Super C-band (6.1 THz). This method increases fiber capacity by roughly 30 percent. With the newest transponder technology and the Super L-band, these systems can now provide around 100T of capacity per fiber. In 2024, network operators will begin to choose and install this newer generation of expanded-spectrum optical line networks.
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