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APD20D1 on Carrier
28 Gb/s Avalanche Photodiode with Integrated Lens

     

APD20D1 is a bottom-illuminated, 28 Gb/s avalanche photodiode (APD) chip with integrated backside lens. This innovative APD provides low noise multiplication and a high gain-bandwidth product which enables the design of high sensitivity 28G receivers. Typical applications include 28 Gbaud PAM-4, 100GBASE-ER4 and 25G EPON.
The integrated backside lens focuses the incoming light beam on the topside detecting area, enabling an easy and efficient optical coupling.
The APD is flip-chip soldered on a metallized ceramic carrier with a coplanar GSG or a Y-shaped contact pad layout. The large pads allow placement of multiple bonds.

Features

  • Low noise multiplication
  • High gain-bandwidth product
  • Enabling high sensitivity 28G receivers
  • Large lens diameter of 100 μm
  • High responsivity: 1 A/W
  • Flip-chip soldered onto ceramic carrier

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