A Study Of The Polarization Properties Of AT&T's Rectangular Polarization-Maintaining Fiber

M. W. Shute Sr.; C S. Brown; A. J. Ritger

doi:10.1117/12.967609

1 January 1987 A Study Of The Polarization Properties Of AT&T's Rectangular Polarization-Maintaining Fiber

M. W. Shute Sr., C S. Brown, A. J. Ritger

Proceedings Volume 0841, Fiber Optic Networks and Coherent Technology in Fiber Optic Systems II; (1987) https://doi.org/10.1117/12.967609
Event: Cambridge Symposium on Fiber Optics and Integrated Optoelectronics, 1987, Cambridge, MA, United States

Abstract

An experimental study of the polarization properties of AT&T's rectangular polarization-maintaining fiber is reported. The extinction ratio is measured at 1320 nm for lengths of 20m, 40m, 100m, 310m, and 804m. The first demonstration the the length dependence of the extinction ratio of a polarization-maintaining fiber obeys random coupling theory is also reported; this is due to the rectangular geometry of the fiber which facilitates winding and packaging the fiber with no perturbations. The polarization-holding parameter is 2.08 ± 0.09 x10^-6m^-1. The state of polarization as a function of the input angle of the linear polarized field is determined for various lengths. For lengths ≥100m, depolarization effects eliminate all other states of polarization except the linear on-axis polarization state. For shorter lengths, other polarization states can propagate in the fiber; however, if the input angle of the field is within 5° of the polarization axis of the fiber only the linear on-axis polarization state will propagate in the fiber. Using an elasto-optic point perturbation technique, a beat length of 6.78 ± 0.36 mm was measured directly at a wavelength of 1320 nm, inferring a phase index difference of 1.95 x10^-4.

Citation Download Citation

M. W. Shute Sr., C S. Brown, and A. J. Ritger "A Study Of The Polarization Properties Of AT&T's Rectangular Polarization-Maintaining Fiber", Proc. SPIE 0841, Fiber Optic Networks and Coherent Technology in Fiber Optic Systems II, (1 January 1987); https://doi.org/10.1117/12.967609

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