Analysis of a new circular photonic crystal fiber with large mode area

作者：Medjouri Abdelkader^*; Simohamed Lotfy Mokhtar; Ziane Omar; Boudrioua Azzedine

来源：Optik, 2015, 126(24): 5718-5724.

DOI：10.1016/j.ijleo.2015.09.035

• Circular lattice photonic crystal fiber
• Large mode area
• FDTD method
• Confinement loss
• Bending loss

A new design of large mode area (LMA) circular lattice photonic crystal fiber (CL-PCF) is proposed and numerically investigated. The cladding is formed by six rings of air holes arranged in circular configuration and the core is obtained by only omitting one air hole in the center. The transmission characteristics such as confinement loss, effective mode area, chromatic dispersion and bending loss are analyzed by using a finite difference in time domain (FDTD) method combined with perfectly matched layer (PML) boundary condition. Results show that around 1.55 mu m, the proposed CL-PCF exhibits an effective mode area larger than 1000 mu m(2) with a confinement loss as low as 7.64 x 10(-3) dB/km for an air-filling fraction of d/Lambda = 0.16. Furthermore, the effect of bending is reported and two new variants of CL-PCF are presented in the aim to mitigate its induced loss: CL-PCF with double air holes diameter in single side and CL-PCF with double cladding constant.

• 出版日期2015