APD20D1 on Carrier
28G 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 / 50G PON.
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
- High optical damage threshold: up to +5 dBm
- Easy optical coupling through integrated backside lens
- High responsivity: 5 A/W
- Large dynamic range
- Low noise multiplication
- High gain-bandwidth product
- Enabling high sensitivity 28G receivers
- Flip-chip soldered onto ceramic carrier
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