发明名称 |
INTERFEROMETER AND METHOD FOR COMPENSATION OF DISPERSION OR INCREASE IN SPECTRAL RESOLUTION OF SUCH AN INTERFEROMETER |
摘要 |
The invention concerns a double-beam interferometer (1) for electromagnetic radiation and a method for the compensation of dispersion or increase in the spectral resolution of such an interferometer. Using a polarizer (8), which is brought into the optical radiation path, a defined polarization state P1/2<0> is produced for the electromagnetic partial waves flowing into the arms of the interferometer. This polarization state is wavelenght-independent and can vary for both partial beams. Optical elements (11, 12) modify the polarization state P1/2<0> of the electromagnetic partial waves as a function of wave-length lambda and each spectral component lambda i is coded with a polarization P1/2 ( lambda i). An analyzer (9), fitted to the output of the interferometer, transmits an adjustable polarization state Pdet, whereby an additional wavelength-dependent phase difference gamma ( lambda ) occurs between the partial waves of the spectral components. gamma ( lambda ) can be adjusted to obtain compensation of dispersion or an increase in the spectral resolution of the interferometer.
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申请公布号 |
WO9805933(A1) |
申请公布日期 |
1998.02.12 |
申请号 |
WO1997EP04189 |
申请日期 |
1997.08.01 |
申请人 |
DEUTSCHE TELEKOM AG;DULTZ, WOLFGANG;FRINS, ERNA;HILS, BERND;SCHMITZER, HEIDRUN |
发明人 |
DULTZ, WOLFGANG;FRINS, ERNA;HILS, BERND;SCHMITZER, HEIDRUN |
分类号 |
G01B9/02;G01J3/02;G01J3/45;G01J3/453;G01J9/02;(IPC1-7):G01J9/02 |
主分类号 |
G01B9/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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