Journal ArticleDOI
Evaluation of polarization mode coupling coefficient from measurement of polarization mode dispersion
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In this article, the authors evaluated the coupling coefficient of a single-mode fiber having an elliptical core with 10 percent ellipticity at wavelengths of 0.85 and 1.3 μm.Abstract:
Polarization mode coupling coefficient is evaluated from the measurement of polarization mode dispersion as a function of fiber length in a single-mode fiber having an elliptical-core with 10-percent ellipticity. The modal dispersion measurement are carried out by the improved spatial technique based on an optical heterodyne detection at the wavelengths of 0.85 and 1.3 μm. The coupling coefficients are evaluated from the measurements to be 3.4 \times 10^{-3} and 4.6 \times 10^{-3} m-1for modal-birefringence magnitudes of 8 \times 10^{-6} and 3 \times 10^{-6} , respectively. The coupling coefficients obtained from the dispersion measurement are coincident with those evaluated from the extinction-ratio measurements. In addition, dependence of the coupling coefficient on propagation constant difference between the two orthogonally polarized HE 11 modes is investigated based on Lorentzian power spectrum model.read more
Citations
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Polarization-maintaining fibers and their applications
Juichi Noda,K. Okamoto,Y. Sasaki +2 more
TL;DR: In this article, the classification of high-birefringent and low-birrringent fibers and their fabrication methods and characteristics are discussed in Section II and Section III, respectively.
Journal ArticleDOI
Statistical treatment of the evolution of the principal states of polarization in single-mode fibers
TL;DR: In this article, a simple relationship for the evolution of the principal states of polarization (PSPs) and their differential group delay in fiber links is found, using the relationship, for the probability of DGD.
Journal ArticleDOI
Measurement of the group-delay difference between the principal states of polarization on a low-birefringence terrestrial fiber cable.
TL;DR: Measurements of the frequency dependence of the state of polarization at the end of a low-birefringence long-cabled (50-km) optical fiber using the Poincaré sphere representation find the principal states of polarization and their group-delay difference.
Journal ArticleDOI
Mode couplings due to external forces distributed along a polarization-maintaining fiber: an evaluation
TL;DR: A new interferometric scheme for measuring mode conversion distributed locally along a polarizationmaintaining fiber is presented and the power coupling coefficient, varying with magnitude and angle of external pressure transversely applied to a fiber, was evaluated both theoretically and experimentally.
Journal ArticleDOI
Polarization measurements on single-mode fibers
TL;DR: An overview of current measurement techniques on conventional and polarization maintaining singlemode fibers is presented in this paper, where various methods are discussed and classified with respect to the relevant polarization parameters and applicability ranges and resolution are pointed out for different types of fibers.
References
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Optical fiber sensor technology
Thomas G. Giallorenzi,Joseph A. Bucaro,Anthony Dandridge,G. H. Sigel,J. H. Cole,Scott C. Rashleigh,R. Priest +6 more
TL;DR: The current state of the art of optical fiber sensors is reviewed, the principles of operation are detailed and the various types of fiber sensors are outlined.
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Polarization in optical fibers
TL;DR: In this paper, the nature of random coupling between normal modes of polarization is analyzed and discussed in connection with various applications, such as fibers with very small or very large birefringence for polarization dependent applications.
Journal ArticleDOI
Origins and control of polarization effects in single-mode fibers
TL;DR: In this article, the basic birefringences that couple the two modes and change the polarization state along the fiber are reviewed, and three cases of uniform, phase-matched, and random coupling are considered.
Journal ArticleDOI
Coherent optical fiber transmission systems
Yoshihisa Yamamoto,T. Kimura +1 more
TL;DR: In this paper, the feasibility of coherent optical fiber transmission systems was studied from the view point of device and system consideration and expected performance, in which laser coherence is utilized to carry information.