scholarly journals Selective filling of photonic crystal fibers using focused ion beam milled microchannels

2011 ◽  
Vol 19 (18) ◽  
pp. 17585 ◽  
Author(s):  
Fei Wang ◽  
Wu Yuan ◽  
Ole Hansen ◽  
Ole Bang
Keyword(s):  
Photonic Crystal ◽  
Focused Ion Beam ◽  
Photonic Crystal Fibers ◽  
Ion Beam ◽  
Crystal Fibers

scholarly journals Photonic bandgaps in selectively filled photonic crystal fibers

2017 ◽  
Vol 9 (3) ◽  
pp. 79 ◽  
Author(s):  
Olga H. Jaworska ◽  
Sławomir Ertman
Keyword(s):  
Liquid Crystal ◽  
Photonic Crystal ◽  
Optical Fibers ◽  
Focused Ion Beam ◽  
Photonic Crystal Fibers ◽  
Ion Beam ◽  
Photonic Bandgaps ◽  
Practical Applications ◽  
Enhanced Sensitivity ◽  
Crystal Fibers

Simulations of selectively filled photonic crystal fibers using finite elements method were performed. Different patterns of filling were modeled and compared to an empty and fully filled fiber. Dependence of effective refractive indices of guided modes, phase birefringence and confinement losses on guided wavelength was investigated. A comparison of width of photonic bandgaps in different structures was made. Full Text: PDF ReferencesPh. St. J. Russell, "Photonic-Crystal Fibers", J. Lightwave Technol. 24, 4729 (2006) CrossRef Y. Han, S. Tan, M. K. K. Oo, D. Pristinski, S. Sukhishvili, and H. Du, "Towards Full-Length Accumulative Surface-Enhanced Raman Scattering-Active Photonic Crystal Fibers", Adv. Mat. 22, 2647 (2010) CrossRef S. Ertman, A. H. Rodríguez, M. M. Tefelska, M. S. Chychłowski, D. Pysz, R. Buczyński, E. Nowinowski-Kruszelnicki, R. Dąbrowski, and T. R. Woliński, "Index Guiding Photonic Liquid Crystal Fibers for Practical Applications", J. Lightwave Technol. 30, 1208 (2012) CrossRef K. Mileńko, S. Ertman, T. R. Woliński, "Numerical Analysis of the Phase Birefringence of the Photonic Crystal Fibers Selectively Filled with Liquid Crystal", Mol. Cryst. Liq. Cryst. 596, 4 (2014) CrossRef Y. Wang, C. Liao, X. Zhong, Z. Li, Y. Liu, J. Zhou, and K. Yang, "Selective-fluid-filled photonic crystal fibers and applications", Proc. SPIE 8914, 89140J-1 (2013) CrossRef F. Wang, W. Yuan, O. Hansen, and O. Bang, "Selective filling of photonic crystal fibers using focused ion beam milled microchannels", Opt. Express 19, 17585 (2011) CrossRef T. Martynkien, G. Statkiewicz-Barabach, J. Olszewski et al., "Highly birefringent microstructured fibers with enhanced sensitivity to hydrostatic pressure", Opt. Express 18, 15113 (2010) CrossRef B. T. Kuhlmey, R.C. McPhedran, C. M. de Sterke, "Modal cutoff in microstructured optical fibers", Opt. Lett. 27, 1684 (2002) CrossRef

Seeing things in a hole new light: photonic crystal fibers

2001 ◽  
Author(s):  
Timothy A. Birks ◽  
Jonathan C. Knight ◽  
Brian J. Mangan ◽  
Philip S. Russell
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fibers ◽  
Crystal Fibers

scholarly journals Supercontinuum generation in photonic crystal fibers infiltrated with tetrachloroethylene

2021 ◽  
Vol 53 (4) ◽  
Author(s):  
Hieu Van Le ◽  
Van Thuy Hoang ◽  
Hue Thi Nguyen ◽  
Van Cao Long ◽  
Ryszard Buczynski ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Lattice Constant ◽  
Wavelength Range ◽  
Pump Pulse ◽  
Filling Factor ◽  
Photonic Crystal Fibers ◽  
Fused Silica ◽  
Anomalous Dispersion ◽  
Central Wavelength ◽  
Crystal Fibers

AbstractThis study proposes a photonic crystal fiber made of fused silica glass, with the core infiltrated with tetrachloroethylene (C2Cl4) as a new source of supercontinuum (SC) spectrum. We studied numerically the guiding properties of the several different fiber structures in terms of characteristic dispersion, mode area, and attenuation of the fundamental mode. Based on the results, the structural geometries of three C2Cl4-core photonic crystal fibers were optimized in order to support the broadband SC generations. The first fiber structure with lattice constant 1.5 μm and filling factor 0.4 operates in all-normal dispersion. The SC with a broadened spectral bandwidth of 0.8–2 μm is generated by a pump pulse with a central wavelength of 1.56 μm, 90 fs duration and energy of 1.5 nJ. The second proposed structure, with lattice constant 4.0 μm and filling factor 0.45, performs an anomalous dispersion for wavelengths longer than 1.55 μm. With the same pump pulse as the first fiber, we obtained the coherence SC spectrum in an anomalous dispersion range with wavelength range from 1 to 2 μm. Meanwhile, the third selected fiber (lattice constant 1.5 μm, filling factor 0.55) has two zero dispersion wavelengths at 1.04 μm and 1.82 μm. The octave-spanning of the SC spectrum formed in this fiber was achieved in the wavelength range of 0.7–2.4 μm with an input pulse whose optical properties are 1.03 μm wavelength, 120 fs duration and energy of 2 nJ. Those fibers would be good candidates for all-fiber SC sources as cost-effective alternatives to glass core fibers.

scholarly journals Characteristic Analysis and Structural Design of Hollow-Core Photonic Crystal Fibers with Band Gap Cladding Structures

Sensors ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 284
Author(s):  
Bowei Wan ◽  
Lianqing Zhu ◽  
Xin Ma ◽  
Tianshu Li ◽  
Jian Zhang
Keyword(s):  
Photonic Crystal ◽  
Band Gap ◽  
Photonic Crystal Fibers ◽  
Relative Sensitivity ◽  
Confinement Loss ◽  
Hollow Core ◽  
Characteristic Analysis ◽  
Element Analysis ◽  
The Core ◽  
Crystal Fibers

Due to their flexible structure and excellent optical characteristics hollow-core photonic crystal fibers (HC-PCFs) are used in many fields, such as active optical devices, communications, and optical fiber sensing. In this paper, to analyze the characteristics of HC-PCFs, we carried out finite element analysis and analyzed the design for the band gap cladding structure of HC-PCFs. First, the characteristics of HC19-1550 and HC-1550-02 in the C-band were simulated. Subsequently, the structural optimization of the seven-cell HC-1550-02 and variations in characteristics of the optimized HC-1550-02 in the wavelength range 1250–1850 nm were investigated. The simulation results revealed that the optimal number of cladding layers is eight, the optimal core radius is 1.8 times the spacing of adjacent air holes, and the optimal-relative thickness of the core quartz-ring is 2.0. In addition, the low confinement loss bandwidth of the optimized structure is 225 nm. Under the transmission bandwidth of the optimized structure, the core optical power is above 98%, the confinement loss is below 9.0 × 10−3 dB/m, the variation range of the effective mode field area does not exceed 10 μm2, and the relative sensitivity is above 0.9570. The designed sensor exhibits an ultra-high relative sensitivity and almost zero confinement loss, making it highly suitable for high-sensitivity gas or liquid sensing.

scholarly journals Long period fiber gratings written in photonic crystal fibers by use of CO2 laser

2013 ◽  
Vol 3 (3) ◽  
pp. 193-201 ◽  
Author(s):  
Yiping Wang ◽  
Changrui Liao ◽  
Xiaoyong Zhong ◽  
Jiangtao Zhou ◽  
Yingjie Liu ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Co2 Laser ◽  
Photonic Crystal Fibers ◽  
Fiber Gratings ◽  
Long Period ◽  
Long Period Fiber Gratings ◽  
Crystal Fibers
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