A Calibration Device for Interferometer Shear Amount

A calibration device and interferometer technology, applied in the optical field, can solve problems such as difficult processing and assembly, poor real-time performance, and difficult spectral measurement

Inactive Publication Date: 2011-12-07
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

Due to the two disadvantages of the time-modulated interferometric imaging spectrometer: 1) It requires a high-precision moving mirror moving system, which must maintain uniform speed during the movement process, and has strict requirements on shaking or tilting, making it difficult to process and assemble. ; 2) The real-time performance is poor, and the completion of sampling the interferogram requires a period of moving mirror movement, so it is difficult to measure the rapidly changing spectrum

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  • A Calibration Device for Interferometer Shear Amount
  • A Calibration Device for Interferometer Shear Amount
  • A Calibration Device for Interferometer Shear Amount

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Embodiment Construction

[0021] see figure 1 , the present invention provides an interferometer shear calibration device, the interferometer shear calibration device includes a laser 1 and a CCD camera 3 arranged on the same optical path as the laser 1 . In order to make the use effect more prominent, the calibration device of the shear amount of the interferometer also includes a laser beam expander 2 arranged between the laser 1 and the CCD camera 3, and the laser beam expander 2 is connected to the laser 1 and the CCD camera 3. on the same light path.

[0022] The laser 1 can be a helium-neon laser, a sub-ion laser, or a semiconductor laser, but since the semiconductor laser is working, the temperature generated by power consumption will act on the laser itself, and the heat dissipation of the semiconductor itself is poor, so the resonant cavity of the laser The length of the semiconductor laser will change, and the main function of the resonator itself in the laser is to control the wavelength of...

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Abstract

The invention relates to a calibration device for the shear amount of an interferometer. The calibration device for the shear amount of an interferometer includes a laser and a CCD camera arranged on the same optical path as the laser. The invention provides a high-precision, high-definition and accurately positioned interferometer shear calibration device.

Description

technical field [0001] The invention belongs to the field of optics, in particular to a calibration device for the shear amount of an interferometer. Background technique [0002] Interferometric imaging spectroscopy technology is the cutting-edge science of today's visible light and infrared remote sensor detection technology. It is an organic combination of today's imaging technology and spectral technology. It is that it can simultaneously acquire the spectral information of the detected target to form a data cube. With the development of aerospace technology, large-scale integrated array detector manufacturing technology and space optics, precision machinery, computer image processing and data transmission technology, the interferometric imaging spectroscopy technology has become more and more prominent in space remote sensing and information acquisition. It shows its important status and role, and also shows its broad application prospects in scientific research, natio...

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Application Information

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IPC IPC(8): G01J3/45
Inventor 张周锋赵建科李霞
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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