Low-background optical simulator for focal plane array testing

Bernard J. Isker III; Hai N. Dang; James W. Holloway

doi:10.1117/12.180074

8 July 1994 Low-background optical simulator for focal plane array testing

Bernard J. Isker III, Hai N. Dang, James W. Holloway

Proceedings Volume 2224, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing V; (1994) https://doi.org/10.1117/12.180074
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

Abstract

System-level performance testing of IR focal plane arrays (FPAs) at low background flux has been demonstrated prior to system- level integration using an optical simulator designed at the Hughes Technology Center. The optical simulator uses 30K cooled reflective optics and scanner to focus a 55 micrometers diameter spot on the array under test. The scanner can be synchronized with the array's on-chip time delay and integration (TDI) functions to simulate system-level FPA performance. The optical simulator design incorporates a separately detachable dewar to allow the device under test to be changed without warming up the optics. The optical simulator was designed to test devices in the 3 micrometers to 30 micrometers region and contains cooled background and signal wheels which allow for testing at multiple wavelengths and background flux levels. This paper describes the optical simulator and presents the initial test data obtained.

Citation Download Citation

Bernard J. Isker III, Hai N. Dang, and James W. Holloway "Low-background optical simulator for focal plane array testing", Proc. SPIE 2224, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing V, (8 July 1994); https://doi.org/10.1117/12.180074

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