3D Refractive Index Measurement for Spun Polarization-maintaining Optical Fiber

被引：1
|
作者：
Huang S.-J. [1 ]
Zeng J.-Z. [1 ]
Yan C. [1 ]
Lin Y.-Y. [1 ]
Wang T.-Y. [1 ]
机构：
[1] Key Laboratory of Special Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai
来源：
| 1600年 / Chinese Optical Society卷 / 46期
基金：
中国国家自然科学基金;
关键词：
3D inner structure; 3D refractive index; Digital holography; Edge detection algorithm; Filtered back-projection algorithm; Spun polarization-maintaining optical fiber; Transverse interference system;
D O I：
10.3788/gzxb20174606.0612001
中图分类号：
学科分类号：
摘要：
Based on digital holographic tomography and transverse interference system, by means of rotating the spun polarization-maintaining optical fiber within 180° viewing angle, optimal digital holograms of a section of spun polarization-maintaining optical fiber were recorded by CCD, and then the phase information was extracted through digital image process and the angular spectrum algorithm. Using the filtered back-projection algorithm, the 2D refractive index distribution of each cross-section was retrieved in order to constitute the 3D refractive index distribution of a section of spun polarization-maintaining optical fiber, which revealed the 3D inner structure of the fiber. The measurement results show that the stress legs rotate synchronously with the spin of polarization-maintaining optical fiber, and the refractive indices of the fiber core, stress legs and cladding are unchanged. Finally, the position of the stress legs was achieved by edge detection algorithm and then the spun angle was computed. © 2017, Science Press. All right reserved.
引用
收藏
相关论文
共 18 条
  • [1] Gubin V.P., Isaev V.A., Morshnev S.K., Et al., Use of Spun optical fibres in current sensors, Quantum Electronics, 36, 3, pp. 287-291, (2006)
  • [2] Galtarossa A., Griggio P., Palmieri L., Et al., Polarization properties of randomly-birefringent spun fibers, Optical Fiber Technology, 12, 3, pp. 205-216, (2006)
  • [3] Peng N., Huang Y., Wang S., Et al., Fiber optic current sensor based on special spun highly birefringent fiber, IEEE Photonics Technology Letters, 25, 17, pp. 1668-1671, (2013)
  • [4] Ampem-Lassen E., Huntingtons T., Dragomir N.M., Et al., Refractive index profiling of axially symmetric optical fibers: a new technique, Optics Express, 13, 9, pp. 3277-3282, (2005)
  • [5] White K.I., Practical application of the refracted near-field technique for the measurement of optical fibre refractive index profiles, Optical and Quantum Electronics, 11, 2, pp. 185-196, (1979)
  • [6] Gisin N., Passy R., Pemy B., Optical fiber characterization by simultaneous measurement of the transmitted and refracted near field, Journal of Lightwave Technology, 11, 11, pp. 1875-1883, (1993)
  • [7] Wahba H.H., Kreis T., Characterization of optical fibers by digital holographic interferometry, SPIE Europe Optical Metrology, (2009)
  • [8] Wahba H.H., Kreis T., Characterization of graded index optical fibers by digital holographic interferometry, Applied Optics, 48, 8, pp. 1573-1582, (2009)
  • [9] Wahba H.H., Reconstruction of 3D refractive index profiles of PM PANDA optical fiber using digital holographic method, Optical Fiber Technology, 20, 5, pp. 520-526, (2014)
  • [10] Zhou W.-J., Yu Y.-J., Xu Q.-S., Micro-structure measurement of phase grating based digital micro-holography, Acta Photonica Sinica, 37, 11, pp. 2234-2238, (2008)
12