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Appendix C
NIRQuest512-2.5 and
NIRQuest256-2.5 Sensitivity
When configuring a system for operation out to 2.5µ
m
it is important that you consider the following
details:
Short Integration Times: For the detector to be sensitive out to 2.5µ
m
, the detector’s band gap
energy must be small. Unfortunately, this raises the absolute level of the detectors dark signal.
Typical dark signals at 400ms (NIRQuest512-2.5) and 135ms (NIRQuest256-2.5) are shown
below.
Fiber Selection: For maximum signal intensity, alternative fiber materials should be used for
wavelengths greater than 2.2µ
m
.
