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2.5 Gb/s Long-Wavelength APD

Top-illuminated, high speed avalanche photodiode chip with a dual pad layout and a large optical aperture. The APD is optimized for single-mode Gigabit Passive Optical Networks (GPON) and 2.7 Gb/s SONET/SDH telecom applications. A key feature of this innovative APD is low excess noise, enabling receiver sensitivities of -35 dBm for 2.5 Gb/s NRZ signals when used with an appropriate TIA.


  • Enables a receiver sensitivity of –35 dBm with commercially available TIAs
  • High gain-bandwidth product: 50 GHz
  • Large optical aperture
  • Low operating bias: 27 V
  • Low temperature dependence: 25 mV/°C

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