Design of a test platform with a cyrocooler for InGaAs FPA

Wen-qing Qu; Jie Chen; Qi-Jie Tang; Jin-ting Chen; Zhi-yue Wang; Cheng Chen; Hui Wang; Hong-fei Zhang; Tao Li; Xue Li; Jian Wang

doi:10.1117/12.2559846

13 December 2020 Design of a test platform with a cyrocooler for InGaAs FPA

Wen-qing Qu, Jie Chen, Qi-Jie Tang, Jin-ting Chen, Zhi-yue Wang, Cheng Chen, Hui Wang, Hong-fei Zhang, Tao Li, Xue Li, Jian Wang

Author Affiliations +

Proceedings Volume 11454, X-Ray, Optical, and Infrared Detectors for Astronomy IX; 114543L (2020) https://doi.org/10.1117/12.2559846
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

The infrared astronomy is a very important branch of astronomy. Imaging observation is the basic approach to conduct infrared astronomy observation. Therefore, infrared Focus Plane Array (FPA) detector is needed for an infrared telescope. Detection toward celestial body need the detector to have high performance like extremely low dark current and low readout noise. Therefore, we designed a test equipment based on a 640 × 512 InGaAs array detector with a cryocooler which can cool the detector down to 77K. The detector is InGaAs of SITP-Hu-I type which is sensitive to 0.9us ~ 1.7um band. The test equipment is composed of a vacuum cryocooling system, a mechanical system and an electronical system. The vacuum cryocooling system can provide a low-temperature vacuum environment for the detector, and the mechanical system provides firm supporting. The electronic system provides the driver and readout of the detector.

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Wen-qing Qu, Jie Chen, Qi-Jie Tang, Jin-ting Chen, Zhi-yue Wang, Cheng Chen, Hui Wang, Hong-fei Zhang, Tao Li, Xue Li, and Jian Wang "Design of a test platform with a cyrocooler for InGaAs FPA", Proc. SPIE 11454, X-Ray, Optical, and Infrared Detectors for Astronomy IX, 114543L (13 December 2020); https://doi.org/10.1117/12.2559846

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