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 ◽  
...  

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.

2019 ◽  
Vol 28 (01) ◽  
pp. 1950002 ◽  
Author(s):  
H. Pakarzadeh ◽  
R. Derakhshan ◽  
S. Hosseinabadi

In this paper, wavelength conversion based on optofluidic infiltration of photonic crystal fibers (PCFs) is investigated to achieve the suitable wavelength over wide tunable range. For this purpose, two designs of PCFs (the so-called PCF1 and PCF2) with appropriate dispersion properties are simulated, and wavelength conversion via four-wave mixing process for pump wavelengths in both normal and anomalous dispersion regimes is studied. By changing the refractive index [Formula: see text] of the optical fluid infiltrated into the PCF air-holes and then varying the fiber dispersion properties, the converted wavelength region can be tuned. The results show that for the pump wavelength in the normal dispersion regime, the PCF1 infiltrated with [Formula: see text] and PCF2 infiltrated with [Formula: see text] exhibit the maximum wavelength shift. Moreover, the wavelength shift is much higher than that obtained in the anomalous dispersion regime and it can be further increased by increasing the input pump power.


2013 ◽  
Vol 20 (4) ◽  
pp. 689-696 ◽  
Author(s):  
Jacek Klimek

Abstract This paper outlines a measurement method of properties of microstructured optical fibers that are useful in sensing applications. Experimental studies of produced photonic-crystal fibers allow for a better understanding of the principles of energy coupling in photonic-crystal fibers. For that purpose, fibers with different filling factors and lattice constants were produced. The measurements demonstrated the influence of the fiber geometry on the coupling level of light between the cores. For a distance between the cores of 15 μm, a very low level (below 2%) of energy coupling was obtained. For a distance of 13 μm, the level of energy transfer to neighboring cores on the order of 2-4% was achieved for a filling factor of 0.29. The elimination of the energycoupling phenomenon between the cores was achieved by duplicating the filling factor of the fiber. The coupling level was as high as 22% in the case of fibers with a distance between the cores of 8.5 μm. Our results can be used for microstructured-fiber sensing applications and for transmission-channel switching in liquid-crystal multi-core photonic fibers.


2012 ◽  
Vol 61 (12) ◽  
pp. 124211
Author(s):  
Jin Ai-Jun ◽  
Wang Ze-Feng ◽  
Hou Jing ◽  
Guo Liang ◽  
Jiang Zong-Fu

Nanoscale ◽  
2020 ◽  
Vol 12 (27) ◽  
pp. 14472-14478
Author(s):  
Xu Cheng ◽  
Xu Zhou ◽  
Langyi Tao ◽  
Wentao Yu ◽  
Can Liu ◽  
...  

We theoretically proposed a fiber modulator based on PCFs with a graphene/hBN/graphene film attached to its hole walls, which shows high modulation depth and speed with a broad wavelength range.


2006 ◽  
Vol 14 (18) ◽  
pp. 8290 ◽  
Author(s):  
Anh Tuan Nguyen ◽  
Kien Phan Huy ◽  
Edouard Brainis ◽  
Pawel Mergo ◽  
Jan Wojcik ◽  
...  

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
L. Mescia ◽  
F. Smektala ◽  
F. Prudenzano

Rare-earth-doped chalcogenide glass fiber lasers and amplifiers have great applicative potential in many fields since they are key elements in the near and medium-infrared (mid-IR) wavelength range. In this paper, a review, even if not exhaustive, on amplification and lasing obtained by employing rare-earth-doped chalcogenide photonic crystal fibers is reported. Materials, devices, and feasible applications in the mid-IR are briefly mentioned.


2006 ◽  
Vol 2 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Hao Chi ◽  
Xian-min Zhang ◽  
Lin-fang Shen

Laser Physics ◽  
2018 ◽  
Vol 28 (11) ◽  
pp. 115106 ◽  
Author(s):  
Hieu Van Le ◽  
Van Long Cao ◽  
Hue Thi Nguyen ◽  
An Manh Nguyen ◽  
Ryszard Buczyński ◽  
...  

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