Propagation effects in a photonic crystal fiber filled with a low-birefringence liquid crystal

Tunable properties of light propagation in photonic crystal fibers filled with liquid crystals, called photonic liquid crystal fibers (PLCFs) are presented. The propagation properties of PLCFs strongly depend on contrast between refractive indices of the solid core (pure silica glass) and liquid crystals (LCs) filing the holes of the fiber. Due to relatively strong thermo-optical effect, we can change the refractive index of the LC by changing its temperature. Numerical analysis of light propagation in PLCF, based on two simulation methods, such as finite difference (FD) and multipole method (MM) is presented. The numerical results obtained are in good agreement with our earlier experimental results presented elsewhere [1].

Section: Experimental Verificationmentioning

confidence: 50%

Section: Introductionmentioning

confidence: 99%

Tunable properties of light propagation in photonic liquid crystal fibers

Szaniawska

Nasiłowski

Woliński

et al. 2006

“…Beside the conventional structures with a large number of air holes located in the silica cladding, the particular attention is recently paid to the PCFs infiltrated with different materials, including nematic liquid crystals (NLCs) [1][2][3]. The latter, being the new class of advanced microstructures called as photonic liquid crystal fibers (PLCFs), combine the passive PCF host structure and active NLC guest material.…”

Section: Introductionmentioning

confidence: 99%

Linear and nonlinear properties of photonic crystal fibers filled with nematic liquid crystals

Brzdakiewicz

Laudyn

Karpierz

et al. 2006

We investigate linear and nonlinear light propagation in the photonic crystal fibers infiltrated with nematic liquid crystals. Such a photonic structure, with periodic modulation of refractive index, which could be additionally controlled by the temperature and by the optical power, allows for the study of discrete optical phenomena. Our theoretical investigations, carried out with the near infrared wavelength of 830 nm, for both focusing and defocusing Kerr-type nonlinearity, show the possibility of the transverse light localization, which can result in the discrete soliton generation. In addition, we present the preliminary experimental results on the linear light propagation in the photonic crystal fiber with the glycerin-water solution and 6CHBT nematics, as the guest materials.

“…Recently, there has been a great interest in photonic crystals fibers and particularly in more advanced micro-structures known as photonic liquid crystal fibers [4][5][6]. The PLCF consisting of a PCF filled with a LC benefits from a combination of a passive PCF host structure and an "active" LC guest material and are responsible for diversity of new and uncommon properties including also particular polarization properties [7].…”

Section: Introductionmentioning

confidence: 99%

Temperature tuning of polarization mode dispersion in single-core and two-core photonic liquid crystal fibers

Lesiak

Woliński

Brzdakiewicz

et al. 2007

In this paper we present numerical and experimental results of propagation and polarization properties of the photonic liquid crystal fibers (PLCFs) in which only selected micro holes were filled with nematic liquid crystal (LC) guest materials. As a host photonic crystal fiber (PCF) structure, we used a commercially available highly birefringent PCF (Blazephotonics, UK). A tunable laser operated at infrared has powered the PLCFs under investigation infiltrated by the 1550 nematic LC synthesized at the Military University of Technology. Temperature induced changes of the polarization mode dispersion (PMD) as well switching between fundamental and higher order modes and also single-core and two-core propagation were successfully demonstrated.