A Measurement Method of Lengths and Phases of Transmission Optical Fibers for the CSRH

Zhang Yuecheng; Liu Rongjun; Ma Yupei; Xu Xiangqian; Wang Wei; Ji Guoshu

Astronomical Research and Technology > 2011 > 8(4): 334-337.

Zhang Yuecheng, Liu Rongjun, Ma Yupei, Xu Xiangqian, Wang Wei, Ji Guoshu. A Measurement Method of Lengths and Phases of Transmission Optical Fibers for the CSRH[J]. Astronomical Research and Technology, 2011, 8(4): 334-337.

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A Measurement Method of Lengths and Phases of Transmission Optical Fibers for the CSRH

1.
The 13^th Institute of The China Electronics Technology Group Corporation, Shijiazhuang 050051, China
2.
National Astronomical Observatories of the Chinese Academy of Sciences, Beijing 100012, China

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Received Date: October 05, 2010
Revised Date: December 29, 2010
Published Date: October 14, 2011

Graphical Abstract

Abstract

Abstract

We first briefly explain the physical meaning of equal-length transmission optical-fibers, as well as a few schemes of realizing such optical-fibers. We then determine from analysis the requirement on length errors. We also list two methods for measuring lengths of optical-fibers. Phase errors of the fiber transmission for the CSRH are analyzed and calculated. We finally describe some measurement methods of optical-fiber phases.
- Radioheliograph,
- Aperture Synthesis,
- Interferometer,
- OFL(Optical-Fiber Link),
- WDM(Wavelength- Division Multiplexing)

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References (5)

References

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