• 200G QSFP56 AOC and 200G QSFP-DD AOC

    Why does the 200G QSFP56 AOCuse PAM4 modulation butthe200G QSFP-DD AOCuse NRZ modulation to provide solutions up to 200G aggregate? PAM4 (Pulse Amplitude Modulation 4) enables a PAM4 waveform to transmit twice as many bits as an NRZ waveform at the same symbol rate. The 200G QSFP-DD AOC employs eight lanes that operate up to 25Gbps NRZ modulation each to provide bandwidth up to 200Gbps. However, the 200G QSFP56 AOC have only four-lane electrical interfaces, so it is required to use PAM4 modulation up to 50Gbps per lane so as to provide bandwidth up to 200 Gbps. The different of 200G QSFP56 AOC and 200G QSFP-DD AOC will be introduced as follow. The 200G AOCs are suitable for short distances and offer a cost-effective solution to connect within racks and across adjacent racks. Gigalight offers a full range of 200G AOCs in both QSFP-DD and QSFP56 form-factors. The Gigalight 200G AOC product line includes 200G QSFP-DD AOC,200G QSFP-DD to 2x 100G QSFP28 AOC,200G QSFP-DD to 4x 50G QSFP28 AOC,200G QSFP56 AOC,200G QSFP56 to 2x 100G QSFP56 AOC,200G QSFP56 to 4x 50G SFP56 AOC. All of…

    July 4, 2019 0 0 3
  • How to Choose the Right 200G Optical Transceiver Supplier in China for Your Network Upgrade?

    Some network operators choose 200G instead of 400G to address rapid datacenter traffic growth. For example, according to LightCounting reports that Facebook will deploy 200GbE before 400GbE, while Google already has begun 2x200GbE optical transceiver. 200G optical transceiver is expected to find acceptance in parts of the cloud and enterprise data center networking space at the same time frame as 400G. As we all know, there are just a few suppliers to provide 200G optical transceiver, so it is vital to choose the right supplier for network operators. Since most companies are unaware of how to choose the right supplier so that they missed the chance to cooperate with the right partner. Here are some ways that will help you verify their effectiveness for your needs. Google Search  Engine You can affirm the credibility of the optical transceiver supplier by checking the information of 200G optical transceivers. Simply input words such as “200G optical transceiver” or “200G QSFP-DD” onto the Google search engine to see. Form Factor There are several 200G form factor such as QSFP-DD, QSFP 56, CFP2. The QSFP-DD…

    May 29, 2019 0 0 8
  • Three Hot Selling 200G Optical Transceivers for Data Center

    The dramatically grew in demand for 100G CWDM over the past year. While 100G continues to ramp, the promise of high volume 400G remains omnipresent, albeit a 2019 phenomenon. Customers need existing technologies that ship in production volumes to fill this industry gap. While 100G CWDM is a mature and well-understood technology and will continue to ramp in the coming year, many of the big Cloud Data Center OEMs are turning their sights to 200G, to meet the pressures of enabling faster connections at scale volumes. 200G optical transceivers with their many advantages such as significantly lower latency, power consumption and cost are coming to market now, and are seen by many as a viable, volume-scalable stepping-stone to 400G. The three hot selling 200G optical transceivers for the data center will be introduced in this article. 200G QSFP-DD SR8 NRZ QSFP-DD ports are backwards compatible with QSFP28 which is very important to provide a smooth upgrade path and links with older systems.  The backwards compatibility of the QSFP-DD allows for easy adoption of the new module type and accelerate overall…

    May 22, 2019 0 0 10
  • Gigalight 200G QSFP-DD PSM8 10km Optical Transceiver

    The Gigalight 200G QSFP-DD PSM8 10km optical transceiver module is designed for 2x 100G-PSM4 links over multiple single-mode fibers and supports transmission distance up to 10km using 1310nm wavelengths. The maximum power dissipation is 6.5W.

    Videos May 17, 2019 0 0 6
  • Gigalight 200G QSFP-DD SR8 Optical Transceiver

    The Gigalight 200G QSFP-DD SR8 optical transceiver module is designed for 2x 100GBASE-SR4 Ethernet links reach up to 70m (OM3) or 100m (OM4) over Multi-Mode Fiber (MMF). The maximum power dissipation is 4W.

    Videos April 12, 2019 0 0 5
  • 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
  • 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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