• Title/Summary/Keyword: optical analysis

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Calibration of Measurement of Multiple Polarization Singularities

  • Yu, Renlong;Xin, Yu;Zhao, Shuan;Zhao, Qi;Chen, Yanru
    • Journal of the Optical Society of Korea
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    • v.19 no.4
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    • pp.397-402
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    • 2015

  • In this paper, we propose a method used to measure the polarization state of a field with multiple polarization singularities (PSs), such as an array of PSs and PSs in vector speckle. A checkerboard is used to construct characteristic points, which makes it possible to calibrate the mismatches between pictures obtained during the rotation of a quarter-wave plate and a polarizer. Using this method a field with an array of PSs is measured. The experimental result is compared with the numerical simulation. We also carry out some data analysis. The comparison and analysis emphasize the necessity and feasibility of this method to measure the PSs.

  • https://doi.org/10.3807/JOSK.2015.19.4.397 인용 PDF KSCI KPUBS HTML

A Study on the Optical Bench for LEO Earth Observation Satellite (저궤도 지구관측위성의 광학탑재체 지지구조물 설계 연구)

  • Kim, Kyung-Won;Kim, Jin-Hee;Rhee, Ju-Hun;Jin, Ik-Min;Kim, Jong-Wo
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2005.05a
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    • pp.805-808
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    • 2005

  • This paper is a study on an optical bench satisfying stiffness and thermal pointing error requirements for LEO earth observation satellite. According to shape and stiffness requirements, optical bench type 1 is designed. Because type 1 does not satisfy the thermal pointing error requirement, an optical bench type 2 is suggested. Although the type 2 has better results than type 1, it still does not meet the thermal pointing error requirement. Using the results of optical bench type 1&2, the optical bench type 3 is finally designed, which satisfies both the stiffness and thermal pointing error requirements.

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