Characteristics Analysis of Photonic Crystal Fiber with Hexagonal and Octagonal Structure

2011 ◽  
Vol 148-149 ◽  
pp. 326-330
Author(s):  
Wei Wang ◽  
Bo Yang ◽  
Yue Fan ◽  
Hong Ru Song

Aiming at the requirements of high performance of optical communication systems, a new type of photonic crystal fiber (PCF) is proposed. This kind of PCF consists of hexagonal air holes in the inner cladding and octagonal air holes in the others layers. Two big elliptical air holes are embedded to enhance the birefringence. Numeral results show that this kind of PCF exhibits high birefringence with the level of 10-3 and high nonlinearity with the level of 10-2m-1w-1. In addition, two zero dispersion points are obtained after optimization, which will find application in dispersion compensation PCFs.

2012 ◽  
Vol 457-458 ◽  
pp. 586-589 ◽  
Author(s):  
Wei Wang ◽  
Bo Yang ◽  
Hong Ru Song ◽  
Yue Fan

A new type of photonic crystal fiber (PCF) with pentagonal air-core is proposed, which consists of octagonal air holes in the cladding. In addition, five elliptical air holes are embedded in the inner layer to enhance the birefringence characteristic. Characteristics of this PCF are analyzed by using of Finite Element Method (FEM). Numerical results show that this kind of PCF exhibits high birefringence with the level of 0.001 after optimization, which will find application in optical sensing systems.


2009 ◽  
Vol 129 (4) ◽  
pp. 601-607
Author(s):  
Shubi F. Kaijage ◽  
Yoshinori Namihira ◽  
Nguyen H. Hai ◽  
Feroza Begum ◽  
S. M. Abdur Razzak ◽  
...  

2008 ◽  
Vol 4 (1) ◽  
pp. 19-22 ◽  
Author(s):  
Ming Chen ◽  
Si-gang Yang ◽  
Fei-fe Yin ◽  
Hong-wei Chen ◽  
Shi-zhong Xie

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Md. Mahbub Hossain ◽  
Md. Shamim Ahsan ◽  
Niloy Sikder ◽  
Md. Ekhlasur Rahaman ◽  
Abdullah Al-Mamun Bulbul ◽  
...  

AbstractWe propose a perfectly square lattice photonic crystal fiber (PCF) which shows high birefringence and negative dispersion. To set up high asymmetry in the core, dual line imperfection is considered where the fill fraction ratio and defect air hole diameter exhibit significant impact on dispersion and birefringence. Numerical analyses of guiding properties of the proposed PCF are done using finite element method with perfectly matched layer boundary condition from 1.2 to 1.8 μm wavelength. The optimized square lattice PCF presents high birefringence of 2.48 × 10−2 and dispersion of −777.66 (ps/nm.km) at 1.55 μm wavelength. In addition, the proposed PCF offers ultra-low confinement and insertion loss at 1.55 μm wavelength. Moreover, −0.45 (ps/nm2.km) dispersion slope and 0.0045 nm−1 relative dispersion slope are observed at 1.55 μm wavelength. Additionally, the proposed PCF maintains dispersion and birefringence variation of ±30 (ps/nm.km) and ±0.00001 between 1.5 and 1.6 μm wavelength ranges, respectively. Furthermore, the proposed PCF shows high quality factor and low bit error rate at 10 dBm input power. We believe the proposed square lattice PCF can be deployed in wavelength division multiplexing based optical fiber transmission system for wide-band dispersion compensation.


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