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What are 100G QSFP28 single lambda optical transceivers?

What is “100G QSFP28 single lambda”?

100G QSFP28 single lambda transceivers use only one lane that operate at speed of 100G to transport data with PAM4 (four-level pulse amplitude modulation).

This new technology is a big improvement from the one used in traditional 100G QSFP28 transceivers. Indeed, the design of these transceivers are more complex, by transmitting data over four parallel lanes that operate at speed of 25G each and modulated with NRZ (Non-Return to Zero).

100G QSFP28 Single Lambda

What is the advantage of 100G QSFP28 single lambda?

By transporting the data on only one lane with one wavelength with PAM4, instead of four parallel lanes with four different wavelengths with NZR, the 100G single lambda technology has a simpler design. The number of optical components is significantly reduced, lowering the cost of manufacturing.

The 100G Lambda MSA has recognized that a single optical lane of 100G can be at least 40% lower cost than four lanes of 25G.

The 100G QSFP28 Single Lambda technology is very attractive because it reduces the cost of upgrading your infrastructure to 100G but it also open new possibilities for the future. Indeed, this technology is used to break a 400G signal into a 4 x 100G instead of 8 x 50G with NZR. The single lane 100G also cut down the cost of manufacturing 400G QSFP-DD optical transceivers.

Applications of 100G QSFP28 single lambda transceivers

  • Data Center Interconnect
  • 100G Ethernet
  • Enterprise networking
  • 5G

100G QSFP28 single lambda transceivers

Standard Optech Part Number Features
100GBASE-DR OPCW-SX5-S10-CB1 1310nm, LC, 500m, 0~70°C
100GBASE-FR OPCW-S02-13-CB1 1310nm, LC, 2km, 0~70°C
100GBASE-LR OPCW-S10-13-CB1 1310nm, LC, 10km, 0~70°C

For more information on 100G transceivers, click here or contact us at

Complete Guide to 100G QSFP28 Optical Transceivers and Cables


About Optech

Optech Technology Co. Ltd was founded in 2001 in Taipei, Taiwan. The company was created with a sole purpose, to provide a wide and high quality portfolio of optical products to a very demanding and fast evolving market.

To respond to the permanent increase of IP traffic, Optech portfolio is constantly growing. Since the beginning, the company has always been up to date with the latest innovations on the market. Today, we are proud to deliver a large selection of 25G SFP28, 40G QSFP+, 100G QSFP28 and 400G QSFP-DD optical transceivers and cables.

Optech has a large portfolio of products which include optical transceiversdirect attach cablesactive optical cablesloopback transceiversmedia converters and fiber patch cords.

Through its large selection of optical products, that have a range of data speed from 155 Mbps to 400 Gbps and reach distances up to 120km, Optech products are suitable for various industries such as telecom, data centers as well as public and private networks.

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