Ocean Optics Nirquest Install - Manual (Page 49)

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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.