Due to the rapid increase in the amount of information required in the ICT market, major standardization bodies are currently actively discussing the 800G/1.6T specifications. On the client side, IEEE802.3 has started discussions on 800G/1.6T in 2021, and on the line side, OIF has started discussions on 800G, also in 2021. However, no further discussions on 3.2T have been made so far, and it is estimated that the discussions will start in 2025 or later. This paper discusses the scheme and configuration of 3.2T optical transceivers, based on the status of standardization discussions up to now, and provides an overview of t the perspectives.
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