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stmichel
With demand on networking and computer performance increasing at a rapid pace, there is a growing need to store, move and process more data in real-time than ever before. As data speeds increase, channel attenuation becomes an inhibitor to moving data across an interface bus. This webcast will highlight Keysight’s contributions with PCIe® 4.0… (Show more)
in Internet Infrastructure
stmichel
Historically, intensity modulation and direct detection have been used in #optical communications to transmit information. This scheme is still used for short reach applications; however, the spectral efficiency and data rate is very limited. For example, a #100 Gbps signal using an intensity modulation scheme requires either very large bandwidth… (Show more)
in Internet Infrastructure
stmichel
Data centers are growing to meet customer demands for higher bandwidth. The #100GBASE-KR/CR backplane and copper interfaces help solve these higher demand issues. However, a faster Ethernet backplane means greater challenges for engineers. The link training decoder helps engineers to manage system integration problems.   The new N8851A solution… (Show more)
in Internet Infrastructure
stmichel
    Progress in photonic integrated circuit (#PIC) technology and applications is accelerating with the onset of an industrial ecosystem comprised of #InP and #SiP foundries, commercial modeling tools, and photonic test capability. Bringing optical test deeper from package level into the semiconductor process is an important step to assure… (Show more)
in Internet Infrastructure
stmichel
Moving to the next higher data speed class of #400 Gbps or# 600 Gbps, the question is again how transmission efficiency can be further increased. In the #optical communications world, capacity gains come essentially from three variables: more carriers through techniques such as polarization and multi-carrier #OFDM modulation, better spectrum… (Show more)
in Internet Infrastructure
stmichel
    Today’s data center infrastructure is continuously optimized to address bandwidth capacity growth, power, reach and service differentiation. Higher transmission rates, more transmission lanes and new multi-level data formats like PAM-4 address the increased transmission bandwidth demand for the next generation data center interconnects. The… (Show more)
in Internet Infrastructure
stmichel
The combination of the spectral efficient PAM4 modulation together with the mature direct modulation / direct detection technology has been chosen by the #802.3bs and #802.3cd task forces [i] to address the urgent demand for more capacity and accelerating cost-per-bit reduction in intra and inter data center communication links. The shift from NRZ… (Show more)
in Internet Infrastructure
stmichel
#Optical coherent transmission, initially used in long-haul transmission, is getting deployed in #metro networks, and is expected to make its way to #data center interconnects. Each product generation increases transmission speed by moving to higher symbol rates and higher-order #QAM constellations. Today’s 100G systems that use quadrature phase… (Show more)
in Internet Infrastructure