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ReleaseSep 7, 2026Entry № 222

PHOGRAIN releases 400Gbps back-illuminated PIN PD chip enabling 1.6T/3.2T optical transceiver iteration


At the 27th CIOE, PHOGRAIN (芯思杰) introduced a 400Gbps back-illuminated PIN photodetector chip aimed at 1.6T and 3.2T optical transceiver modules. The company says the chip uses charge compensation and an integrated back-lens design, with core specifications it places in the global first tier. It is described as one of the industry's first same-rate products to reach production, supporting AI compute-driven transceiver upgrades; PHOGRAIN frames the launch as evidence of its IDM full-chain capability.

Original sources (Chinese)

芯思杰400Gbps PIN PD支撑全球AI算力光互联向3.2T光收发模块迭代leiphone