  To better understand the impact of the avalanche gain applied in the detector
technology and apply this technology in our in-house astrophotonic projects, we
have characterized a C-RED One camera and produced a stable and reliable method
for calculating the system gain at any desired avalanche gain setting. We
observed that depending on how the system gain is obtained, multiplying the
system gain times the avalanche gain may not accurately produce a conversion
factor from electrons to ADUs. Since the acquisition of a photon transfer curve
(PTC) was possible at different avalanche gain levels, several PTCs at low
avalanche gain levels were acquired. Consequently, a linear fit was produced
from the acquired system gain as a function of the avalanche gain setting.
Through the linear fit, the effective system gain was calculated at any desired
avalanche level. The effective system gain makes possible to accurately
calculate the initial system gain without the ambiguity introduced by the
non-linearity of the system. Besides, the impact of the avalanche gain on the
dynamic range was also analyzed and showed a stable behaviour through the
measured avalanche range.
