Jianguo Liu

TL;DR: Numerical result shows that very high modal birefringence with a magnitude of the order of 10(-2) around 1550 nm has been obtained and large normal dispersion appears over a wide range of wavelengths in both orthogonal polarizations.

TL;DR: In this paper, the modal birefringence of a polarization-maintaining index-guiding photonic crystal fiber (PCF) was studied using a full-vector finite-element method.

TL;DR: The theoretical analyses and the experimental results show that both the central wavelength shift and the chirped bandwidth of the grating reflection spectrum have a linear relationship with the stress and the temperature, respectively, and the slopes of them are different, therefore, the temperature and stress can be discriminated by interrogating the Chirped fiber grating.

TL;DR: In this article, the relationship between the intracellular density of cells (S50 and S60) and their slight refraction index (RI) was studied, and the experimental results provided a potential way to verify the hypothesis for density alteration in non-physiological cells (DANCE).

TL;DR: The modal cutoff properties of Ge-doped PCF quantitatively are investigated quantitatively by using the beam propagation method and the numerical results show that the effective refractive indices and the normalized frequency V not only depend on the normalized pitch delta/lambda but also depend upon the normalized hole size d/delta.