Four-band infrared detector for FY-2C application

Haimei Gong; Guosen Xu; Sangen Zhu; Huiguo Qiu; Xiangyang Li; Dingquan Liu; Longyuan Zhu; Xingchao Lin; Yan Zhang; Jiaxiong Fang

doi:10.1117/12.625037

14 October 2005 Four-band infrared detector for FY-2C application

Haimei Gong, Guosen Xu, Sangen Zhu, Huiguo Qiu, Xiangyang Li, Dingquan Liu, Longyuan Zhu, Xingchao Lin, Yan Zhang, Jiaxiong Fang

Author Affiliations +

Proceedings Volume 5964, Detectors and Associated Signal Processing II; 59640B (2005) https://doi.org/10.1117/12.625037
Event: Optical Systems Design 2005, 2005, Jena, Germany

Abstract

Four-band HgCdTe infrared (IR) detector is developed for the first operational Chinese geostationary meteorological satellite FY-2C launched on October 19, 2004. As the Visible Infrared Spin-Scan Radiometer (VISSR) is the primary payload on FY-2C, the IR detector is one of the most important modules for such an imaging instrument. Compared with its predecessors FY-2A and FY-2B (experimental models, launched in June 1997 and June 2000 respectively), the detector used in FY-2C is quite different in band selection and detector package. The four band IR detector for FY-2C application consists of four photoconductive (PC) detector chips made of Hg_1-xCd_xTe with different compositions x , corresponding to the wavelengths of 3.5 to 4.0μm, 6.3 to 7.6μm, 10.3 to 11.3μm and 11.5 to 12.5μm respectively. Four cooled IR filters are included in one detector package, which enables us to simplify the system without any IR beam splitters and IR filters outside the detector for defining separate bands. The IR detector operates at radiative cooler temperature ranging from 92 to 102K. This paper reviews the design, process and packaging for the four-band IR detector used in FY-2C satellite. The performances and related aspects of this detector are also presented.

Citation Download Citation

Haimei Gong, Guosen Xu, Sangen Zhu, Huiguo Qiu, Xiangyang Li, Dingquan Liu, Longyuan Zhu, Xingchao Lin, Yan Zhang, and Jiaxiong Fang "Four-band infrared detector for FY-2C application", Proc. SPIE 5964, Detectors and Associated Signal Processing II, 59640B (14 October 2005); https://doi.org/10.1117/12.625037

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