Recent progress on photonic crystal fibers (PCFs) is reviewed aiming at their application to optical communications. The technology needed to design and fabricate PCF is described and recent experimental results of a PCF with zero dispersion wavelength of 810 nm and a polarization-maintaining low-loss (1.3 dB/km) PCF are shown. The possibility of their application to optical communications is discussed.

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Photonic crystal fibers and their application to optical communications

Supercontinuum generation in microstructured fibers and novel optical measurement techniques

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Characterizing and controlling extreme optical nonlinearities in photonic crystal fibers

\n In this study, design and transmission characteristics of a special type of photonic crystal fiber (PCF) geometry namely, circular-lattice photonic crystal fiber (C-PCF) structure are presented. The cladding of the structure consists by a cylindrically symmetrical distribution of air-holes in the silica background and the core is created by omitting one air-hole at the center. The structure provides high degree of flexibility in the fiber design and hence tailorable modal properties. Structural dependence of transmission characteristics of the geometry is numerically investigated by using finite difference mode convergence algorithm. The wavelength responses of fiber parameters, such as effective refractive index, chromatic dispersion, mode-effective area, and nonlinear coefficient of the structure are systematically investigated. Besides, effective V-parameter and single-mode operation of the fiber are also evaluated and discussed. The simulation results show the possibility of large negative dispersion and dispersion flattened nature of the geometry.

Structural dependence of transmission characteristics for photonic crystal fiber with circularly distributed air-holes

The photonic band gap of a two-dimensional triangular-lattice photonic crystal has been studied using the finite-difference time-domain method. The structure consists of two types of supercells: one with uniform dielectric rods and another with composite rods. Our results show that in both cases an enlarged band gap is present. The central frequency shifts to lower positions with a rise in the rod dielectric constant, but for the supercell with uniform dielectric rods, there are three smaller band gaps that cannot be formed into the enlarged one even when the dielectric constant reaches 57.5. For the photonic crystal of composite medium rods, the largest band gap appears when the dielectric constant reaches 36. Furthermore, the enlarged band gap is present when the dielectric constant decareases to 28. Our results show that the supercells play an important role in the formation of the enlarged photonic band gap. This work will be of significance in fabricating photonic crystal devices.

Photonic crystal fibers and their application to optical communications

Citations

Supercontinuum generation in microstructured fibers and novel optical measurement techniques

Characterizing and controlling extreme optical nonlinearities in photonic crystal fibers

Structural dependence of transmission characteristics for photonic crystal fiber with circularly distributed air-holes

Transmission properties of a two-dimensional photonic crystal in a dielectric constant supercell

Related Papers (5)

A Review on Photonic Crystal Fibers

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