The biggest change since PCIe was born 20 years ago! Introducing optical transmission

  The biggest change since PCIe was born 20 years ago! Introducing optical transmission

  PCI-SIG officially announced that it has set up a new Optical Workgroup to study the possibility of introducing optical transmission interface into PCIe specification.

  PCIe standard was put forward by Intel in 2001, and version 1.0 was released in 2003, with a data transmission rate of 2.5GT/s, and version 6.0 released in early 2022 has reached 64 gt/s..

  7.0, which is under development, continues to double to 128GT/s, and the theoretical bandwidth of x16 is as high as 512 GB/s..

  In the past 20 years, although the external form of PCIe interface has not changed, the internal technology has been earth-shaking, and it has always been compatible.

  Only restricted by the traditional copper transmission mechanism, it is more and more difficult for PCIe technology to continue to improve, and more and more complicated auxiliary mechanisms have to be added to control signal and data integrity.

  Because of this, PCI-SIG decided to change the track, and with the power of optical transmission, it sought to continue to improve the speed, reduce power consumption and delay.

  Of course, everything is still in its infancy, and it may not be until PCIe 9.0 that we can truly embrace optical transmission.