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Avalanche Photodiodes

Avalanche Photodiodes APD

An Avalanche Photodiode (APD) provides higher sensitivity than a standard photodiode. It is ideal for extreme low-level light (LLL) detection and photon counting. Offered in Silicon or InGaAs materials, these devices provide detectivity from 400 nm - 1100 nm. Multiple configurations are available to provide a wide range of sensitivity and speed options.

Products offered include:

  • High-volume, cost effective silicon APDs for Range Finding and Laser Meter applications.
  • Large area, UV-enhanced APDs for Molecular Imaging (PET).
  • Long wavelength enhanced APDs for Analytical Applications.
  • Multi element and quadrant APDs for Analytical Instruments.
  • Standard, high performing APDs for Industrial applications.
  • Hybrid Modules for easy implementation into high performing Instruments.

The use of APDs instead of PIN photodetectors will result in improved sensitivity in many applications. In general, APDs are useful in applications where the noise of the amplifier is high — i.e., much higher than the noise in the PIN photodetector. Thus, although an APD is always noisier than the equivalent PIN, improved signal-to-noise can be achieved in the system for APD gains up to the point where the noise of the APD is comparable to that of the amplifier. For example, when the system bandwidth is high, the amplifier noise is high, and an APD is likely to be useful. On the other hand, in very low bandwidth systems, the noise of the amplifier is likely to be very low, in which case, the APD may not be the best choice. In applications where the background optical power falling on the detector is very high, such as operation of the detector in daylight conditions with little or no filtering, an APD may not be useful, except perhaps at low gain, since the multiplied noise of the background illumination will be very high and may exceed that of the amplifier.

Product List
  
  
  
C30662EHLarge area InGaAs Avalanche Photodiode in hermetic TO-18 package version. 200 µm active area.Datasheet
C30921SHLow noise selected Silicon Avalanche Photodiode (APD) with 0.25 mm active area diameter in lightpipe TO-18 package.Datasheet
C30921EHSilicon Avalanche Photodiode (APD) with 0.25 mm active area diameter in lightpipe TO-18 package.Datasheet
C30902SH-TCHigh performance, low noise selected, TE-cooled Silicon Avalanche Photodiode (APD) for biomedical and analytical applications. 0.5 mm active diameter, TO-18 housing.Datasheet
C30902SH-DTCHigh performance, low noise selected, double stage TE-cooled Silicon Avalanche Photodiode (APD) for biomedical and analytical applications. 0.5 mm active diameter, TO-18 housing.Datasheet
C30902SHHigh performance, low noise selected Silicon Avalanche Photodiode (APD) for biomedical and analytical applications. 0.5 mm active diameter, TO-18 housing.Datasheet
C30902SH-2High performance, low noise selected Silicon Avalanche Photodiode (APD) for biomedical and analytical applications. 0.5 mm active diameter, TO-18 housing, including 905 nm bandpass filterDatasheet
C30902EH-2High performance Silicon Avalanche Photodiode (APD) for biomedical and analytical applications. 0.5 mm active diameter, TO-18 housing, including 905 nm bandpass filterDatasheet
C30902EHHigh performance Silicon Avalanche Photodiode (APD) for biomedical and analytical applications. 0.5 mm active diameter, TO-18 housing.Datasheet
C30659-900-R8AHAvalanche Photodiode (APD) Receiver Module with 900 nm Si-APD. 50 MHz bandwidth.Datasheet
C30659-900-R5BHAvalanche Photodiode (APD) Receiver Module with 900 nm Si-APD. 200 MHz bandwidth.Datasheet
C30659-1550-R2AHAvalanche Photodiode (APD) Receiver Module with 1550 nm InGaAs-APD. 50 MHz bandwidth.Datasheet
C30659-1550-R08BHAvalanche Photodiode (APD) Receiver Module with 1550 nm InGaAs-APD. 200 MHz bandwidth.Datasheet
C30659-1060-3AHAvalanche Photodiode (APD) Receiver Module with 1060 nm Si-APD. 50 MHz bandwidth.Datasheet
C30659-1060-R8BHAvalanche Photodiode (APD) Receiver Module with 1060 nm Si-APD. 200 MHz bandwidth.Datasheet
C30950EHSilicon Avalanche Photodiode (APD) Amplifier module. 50 MHz bandwidth.
C30919EHSilicon Avalanche Photodiode (APD) Amplifier module with temperature compensation. 40 MHz bandwidth.
C30724EHSilicon Avalanche Photodiode (APD). 920 nm peak sensitivity. Low temperature coefficient. Metal TO-housing.Datasheet
C30737LH-300 SeriesLow capacitance Silicon Avalanche Photodiode (APD), in leadless ceramic carrier (LCC) SMT package for high-volume laser meter and range finding applications.Datasheet
LLAM-1550E-R2AHHigh-speed, low-light analog avalanche photodiode (APD) receiverDatasheet
LLAM-900-R5BHHigh-speed, low-light analog avalanche photodiode (APD) receiverDatasheet
LLAM-1550E-R08BHHigh-speed, low-light analog avalanche photodiode (APD) receiverDatasheet
LLAM-1060-R8BHHigh-speed, low-light analog avalanche photodiode (APD) receiver module with 1060 nm Si APD. Thermoelectric cooler. 200 MHz.Datasheet
LLAM-1550-R08BHHigh-speed, low-light analog avalanche photodiode (APD) receiver module with 1550 nm InGaAs APD. Thermoelectric cooler. 200 MHz.Datasheet
LLAM-1550-R2AHHigh-speed, low-light analog avalanche photodiode (APD) receiver module with 1550 nm InGaAs APD. Thermoelectric cooler. 50 MHz.Datasheet
C30659-UV-1UV Avalanche Photodiode Preamplifier ModuleDatasheet
C30662Large area InGaAs Avalanche Photodiodes Datasheet
C30645Large area InGaAs Avalanche PhotodiodesDatasheet
C30985EH25-Element Silicon Avalanche Photodiode (APD) Linear ArrayDatasheet
C30956EHLarge area, long Wavelength Enhanced Silicon Avalanche Photodiode (APD). 3 mm active area diameter, TO-8 package.Datasheet
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