Hybrid infrared focal-plane signal and noise modeling

Jerris F. Johnson; Terrence S. Lomheim

doi:10.1117/12.49325

1 November 1991 Hybrid infrared focal-plane signal and noise modeling

Jerris F. Johnson, Terrence S. Lomheim

Proceedings Volume 1541, Infrared Sensors: Detectors, Electronics, and Signal Processing; (1991) https://doi.org/10.1117/12.49325
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

The time and expense involved in producing infrared hybrid focal plane arrays (IRFPAs) dictates that optimal designs be used. The use of accurate signal and noise models, which identify the critical focal plane design parameters, are essential in obtaining these optimal designs. We describe the methodology behind building a signal and noise model for a hybrid infrared focal plane array consisting of photodetectors coupled to silicon complementary- symmetry metal-oxide-semiconductor (CMOS) readouts. The CMOS readout is essential in transducing the infrared photosignal to a usable voltage domain form, but introduces front-end noise in the hybrid FPA. A signal and noise model for a photodetector-readout combination that is currently used in many applications is examined in order to identify the parameters that affect performance.

Citation Download Citation

Jerris F. Johnson and Terrence S. Lomheim "Hybrid infrared focal-plane signal and noise modeling", Proc. SPIE 1541, Infrared Sensors: Detectors, Electronics, and Signal Processing, (1 November 1991); https://doi.org/10.1117/12.49325

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