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8 x 56 Gbaud Photodiode Array

PD40F8 is a very high-speed 8-channel InGaAs/InP photodiode array chip with a ground-signal-ground (G-S-G) pad layout and a photodiode channel pitch of 250 µm. The large topside illuminated p-i-n photodiode structures are optimized for 56 Gbaud PAM-4 (800GBASE-DR8) single-mode telecom, microwave photonic and RF over fiber links, as well as test and measurement applications.

The compact photodiode array offers excellent responsivity and high speed of response.


  • High bandwidth: 28 GHz per channel
  • Photodiode pitch: 250 µm
  • High responsivity: 0.8 A/W
  • Easy optical coupling into large topside optical aperture
  • G-S-G pad configuration for each channel
  • Cost effective, small chip size

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