APD Photoreceivers - Voxtel

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Voxtel’s APD Product Series
Voxtel’s APD Product Series — Comparison Table
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Responsivity vs. noise in high-performance applications: Deschutes BSI vs. Siletz
The Deschutes BSI and Siletz lines are preferred for applications requiring the highest possible sensitivity
for high-speed, low-light level applications that cannot be served by PIN photodiodes or Geiger APDs. These
high gain-bandwidth products address a balance of tradeoffs for engineering NIR systems in high-speed,
weak-signal regimes that include cutting-edge applications in 3D imaging (including eye-safe LIDAR), longrange
optical communications, and science-grade NIR detection.
The choice of a Deschutes or Siletz APD depends on the other noise sources in the planned receiver system.
The Deschutes BSI line offers a high-quality APD with superior response relative to competing commercial
InGaAs APDs, as well as performance superior to InGaAs PIN photodiodes in most conditions. Siletz APD
products offer superior avalanche gain and low excess noise factors, with the tradeoff of higher dark current.
These products are the most effective in high-performance applications where higher system noise is unavoidable;
in these conditions, high gain is needed and the APD’s additional noise contribution is less important.
Because faster systems typically require the use of noisier amplifiers, the Siletz APD is optimal for highbandwidth
NIR sensing.
75-µm
200-µm
The following table provides typical specifications for Voxtel’s series of APD products. More detailed information
can be found on the following pages, and in the listings for individual products on pages 4 and 5.
Spectral Range,
λ
Operating Gain,
M
Deschutes
FSI
Deschutes
BSI
Siletz
Siletz
UHG
Min. suggested