Measuring the polarization characteristics of birefringent optical fibers using an interference technique

Котов, О. И.; Лиокумович, Л. Б.; Medvedev, A. V.; Markov, S. I.; Khlybov, A. V.

doi:10.1134/1.1773354

Cited by 1 publication

(1 citation statement)

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“…There are more precise methods, based on monitoring the change in the phase difference between the polarization modes, which rely on the rotation of the polarization plane of the light beam [5] or the rotation of the fiber itself [6]. Other techniques combine the rotation with external perturbations of the fiber, which are often achieved by heating [7][8][9][10][11], applying transversal stress [12], pressure [13] or with a frequency-tunable laser [14,15]. Interferometric methods employing a Michelson-interferometer [16] or a fiber interferometer [17] are also used especially for alignment during fiber splicing.…”

Section: Introductionmentioning

confidence: 99%

Wavelength-dependent orientation of the principal axes of photonic crystal fibers measured by windowed Fourier-transform spectral interferometry

Horváth¹,

Nagyillés²,

Grósz³

et al. 2020

Opt. Express

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We present a novel polarization alignment technique based on windowed Fouriertransform (WFT) spectral interferometry to determine the wavelength-dependent orientation of the principal polarization axes of photonic crystal fibers (PCFs). To test the technique, a commercially available, 82.5-cm-long HC-800-02 type hollow-core PCF was measured. The angles belonging to the fast and the slow principal axes of the fiber were determined from the peak intensity values of the ridges in the WFT map at different wavelengths. We demonstrate that the orientation of the principal polarization axes of the tested PCF is wavelength-dependent. The precision of the angle measurement was better than 0.3°.

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