Analysis of the fundamental mode of photonic crystal fiber by imaginary-distance beam propagation method

2003 ◽  
Author(s):  
Yong Z. He ◽  
Frank G. Shi
2013 ◽  
Vol 427-429 ◽  
pp. 945-948
Author(s):  
Bao Yin Cao ◽  
Yong Liu ◽  
Ling Yang

In this paper, multi-core photonic crystal fiber couplers are characterized and numerically simulated with Mangan et als theory and beam propagation method. We propose a kind of 1×3 multi-core photonic crystal fiber couplers with broadband characteristics and the identical split ratio within the range from 1300nm to 1800nm. If the proper length of the couplers is chosen, light couple intensity is completely the same by periphery there-core fiber with broadband characteristics. It provides a theoretical basis for the practice of multi-core photonic crystal fiber couplers.


2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Mohammed Debbal ◽  
Mouweffeq Bouregaa ◽  
Hicham Chikh-Bled ◽  
Mohammed El Kebir Chikh-Bled ◽  
Mohammed Chamse Eddine Ouadah

AbstractThis paper describes study of photonic crystal fiber (PCF) in order to study the influence of temperature on the chromatic dispersion; these types of fibers are based on commercial structures, but air holes will be infiltrated with water. Using finite domain-beam propagation method, it is shown that the zero dispersion wavelength can be shifted from 1.058753 to 1.271767 µm, a shift of 213 nm. At 50 °C, a shift of 169 nm.As a result, we reveal that the proposed PCF can successfully compensate for the chromatic dispersion by the influence of temperature. Furthermore, the design model and methodology can be applied to design other dispersion-based devices, such as dispersion-flattened fibers and dispersion-shifted fibers, or can be used also as a sensor of temperature.


Crystals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 103 ◽  
Author(s):  
Qiang Xu ◽  
Wanli Luo ◽  
Kang Li ◽  
Nigel Copner ◽  
Shebao Lin

We propose a new polarization splitter (PS) based on Ti and liquid infiltrated photonic crystal fiber (PCF) with high birefringence. Impacts of parameters such as shape and size of the air holes in the cladding and filling material are investigated by using a vector beam propagation method. The results indicate that the PS offers an ultra-short length of 83.9 μm, a high extinction ratio of −44.05 dB, and a coupling loss of 0.0068 dB and at 1.55 μm. Moreover, an extinction ratio higher than −10 dB is achieved a bandwidth of 32.1 nm.


2015 ◽  
Vol 336 ◽  
pp. 235-239 ◽  
Author(s):  
Cheng Chen ◽  
Guiyao Zhou ◽  
Yan Chen ◽  
Zhiyun Hou ◽  
Changming Xia ◽  
...  

Nanomaterials ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 845 ◽  
Author(s):  
Dror Malka ◽  
Gilad Katz

A novel eight-channel demux device based on multicore photonic crystal fiber (PCF) structures that operate in the C-band range (1530–1565 nm) has been demonstrated. The PCF demux design is based on replacing some air-hole areas with lithium niobate and silicon nitride materials over the PCF axis alongside with the appropriate optimizations of the PCF structure. The beam propagation method (BPM) combined with Matlab codes was used to model the demux device and optimize the geometrical parameters of the PCF structure. The simulation results showed that the eight-channel demux can be demultiplexing after light propagation of 5 cm with a large bandwidth (4.03–4.69 nm) and cross-talk (−16.88 to −15.93 dB). Thus, the proposed device has great potential to be integrated into dense wavelength division multiplexing (DWDM) technology for increasing performances in networking systems.


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