APD

API reference: APD

An Avalanche Photodiode (APD) detector represents a crucial component in photon detection technology, particularly in scenarios requiring high sensitivity and low light detection. Unlike conventional photodiodes, which operate in linear mode, APDs utilize an internal avalanche multiplication process to amplify the signal generated by incident photons [6].

This amplification enables superior sensitivity, making APDs essential in telecommunications, lidar systems, and low-light imaging. Challenges such as excess noise and afterpulsing are mitigated through optimization techniques and advanced signal processing. Despite these hurdles, APDs remain indispensable for sensitive photon detection in various scientific, industrial, and telecommunications applications.

Below all available models for APD are listed.

Available models

• Scene generation

  • Create and Store a detector

  • Load star map

• Photon collection

  • Create and Store a detector

  • Simple collection

  • Load image

  • Simple illumination

  • Stripe pattern

  • Shot noise

  • Physical Optics Propagation in PYthon (POPPY)

  • Load PSF

• Charge generation

  • Create and Store a detector

  • Simple photoconversion

  • Conversion with custom QE map

  • Conversion with 3D QE map

  • Apply QE curve

  • Load charge

  • CosmiX cosmic ray model

  • Dark current

  • Simple dark current

  • APD gain

  • Dark current Saphira

• Charge collection

  • Create and Store a detector

  • Simple collection

  • Simple full well

  • Fixed pattern noise

• Charge measurement:

  • Create and Store a detector

  • DC offset

  • Output pixel reset voltage APD

  • kTC reset noise

  • Simple charge measurement

  • Readout noise Saphira

  • Non-linearity (polynomial)

• Readout electronics:

  • Create and Store a detector

  • Simple ADC

• Data processing:

  • Create and Store a detector

  • Statistics

  • Linear regression

  • Mean-variance

  • Extract ROI

  • Remove Cosmic Rays

  • Signal-to-noise ratio