Optoelectronics Catch here
High output power module for use in ROADM based metro, regional and long haul networks
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eoPhotonics Corporation, a developer of silicon photonics and advanced hybrid photonic integrated circuit-based lasers, modules and subsystems
for bandwidth-intensive, high speed communications networks, has announced a new, high output power version of its 400G Multi-Rate CFP2-DCO coherent pluggable transceiver with 0 dBm output power and designed to operate in metro, regional and long haul ROADM based optical networks. This new, high output power module is based on NeoPhotonics’ vertically integrated Indium Phosphide technology platform, including its ultra-pure Nano tunable laser and Class 40 Coherent Driver Modulator (CDM) and Coherent Receiver (ICR). The module operates at up to 67 Gbaud enabling
longer distance transmission and exhibiting impressive receiver Optical Signal to Noise Ratio (rOSNR) performance. An important, differentiating feature is that the transmitter integrates an optical amplifier to achieve the 0 dBm output power, while simultaneously achieving what the company believes is the best transmitter OSNR and out-of-band OSNR performance in the industry. Higher transmitter OSNR enables longer distance
transmission or more ROADM stages, while higher out-of-band OSNR ensures less crosstalk for colourless ROADMs. In addition to the high output power and impressive OSNR performance, ROADM applications also depend on a CFP2-DCO’s optical filtering tolerance when its signal passes through multiple ROADMs in a network. This is because each ROADM stage applies optical filtering and causes the signal to lose power at the spectral edges. The CFP2-DCO module is well suited for metro ROADM applications to cover a network distribution of up to 16 ROADM spans, encompassing almost all network scenarios. In addition, this module runs at a high spectral efficiency with 75GHz DWDM channel spacing. The same 400G CFP2-DCO module has sufficient performance to cover
long-haul applications at 400G and 200G. “Our newest CFP2-DCO coherent pluggable module, with high output power, robust ROADM filtering tolerance and demonstrated transmission over 1500 km, allows customers to use one coherent pluggable solution to cover essentially all metro ROADM use cases, simplifying network design, enabling disaggregation, and lowering inventory costs,” said Tim Jenks, chairman and CEO of NeoPhotonics. “The key to achieving line card equivalent performance in a pluggable module, but with significantly lower power than a line card, is the vertical integration of our optical solution and Nano tunable laser,” concluded Mr. Jenks.
www.neophotonics.com
System solution for optical communications in vehicles
ogether with several industry leaders, KDPOF, a supplier for gigabit connectivity over fiber optics, is working on an optical automotive multi-gigabit system that will fulfil the needs of future connected and automated vehicles. Instead of various port components, the new solution provides a single, complete package.
“As the auto industry approaches the
50 Gb/s*m speed-length threshold, the move from copper to optical physical data transmission media is becoming mandatory,” stated Carlos Pardo, CEO and co-founder of KDPOF. “Optical is the engineering-wise path for higher data rates.”
The new connector systems are said to be very small, lightweight and extremely inexpensive compared to the previous ones. With the comprehensive EVK9351AUT
evaluation kit, automotive manufacturers and suppliers can already test the new configuration at 1 Gbit/s today. KDPOF thus supports easy project entry into optical gigabit connectivity for a secure Ethernet backbone and ADAS sensor connections in vehicles. KDPOF will present their optical Multi- gigabit Ethernet Connectivity System at ELIV (Electronics In Vehicles) International VDI Congress on October 20 to 21, 2021 at stand 38 in Bonn, Germany, and online. The key advantages of the optical solution are superior Electromagnetic Compatibility (EMC) thanks to the inherent galvanic isolation, low weight, and low cost. The optical cables are reliable and at least as flexible as copper cables in the same bandwidth range. They allow fast, dynamic and tight bending as well as immersion in dark liquids. In addition, optical connectivity guarantees easy engineering for seamless implementation. The ecosystem already exists since the system leverages well-proven technologies, such as VCSELs (Vertical-cavity surface-emitting laser), multimode fibers and photodiodes already developed for the data centres industry. The
www.cieonline.co.uk
technology will be scalable in order to enable even higher data rates, such as 50 and 100 Gb/s, in the future. Standardization processes are ongoing with IEEE 802.3 Automotive Ethernet and ISO PWI 24581 in progress. The robust and reliable system solution provided by KDPOF and industry leaders thus offers the future-proven path to high speeds. The proposed Multi-gigabit system supports Energy-Efficient Ethernet (EEE) tailored for automotive applications and wakes up in less than 100 ms. The target BER is better than 10-12 with ambient operating temp from -40ºC up to 105ºC (AEC-Q100 grade 2) in harsh automotive environments. High reliability (15 years operation, less than 10 FIT) and outstanding EMC compliance are also fulfilled. The technology in development is based on advanced digital signal processing, using high-speed DAC and ADC to implement all needed algorithms such as equalization or pre-coding. A new optical automotive IVN communication standard IEEE 802.3cz is currently in the task force phase and is targeting data rates of 2.5, 5, 10, 25, and 50 Gb/s. It is supported by several industry-leading companies. First engineering samples of the new automotive, single-chip, fully integrated Fiber Optic Transceiver package solution for 10 Gb/s will be available from KDPOF in autumn 2022.
https://www.kdpof.com Components in Electronics September 2021 41
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