scholarly journals Photonic crystal and microstructured fibers: Making fibers better by leaving bits out

2011 ◽  
Author(s):  
Jonathan Knight
Keyword(s):  
Photonic Crystal ◽  
Microstructured Fibers

scholarly journals Stack and draw fabrication of soft glass microstructured fiber optics

2014 ◽  
Vol 62 (4) ◽  
pp. 667-682 ◽  
Author(s):  
D. Pysz ◽  
I. Kujawa ◽  
R. Stępień ◽  
M. Klimczak ◽  
A. Filipkowski ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Fiber Optics ◽  
Electronic Materials ◽  
Photonic Crystal Fibers ◽  
Microstructured Fiber ◽  
Microstructured Fibers ◽  
Soft Glass ◽  
Highly Nonlinear ◽  
Crystal Fibers ◽  
Light Guides

Abstract A broad review is given of microstructured fiber optics components - light guides, image guides, multicapillary arrays, and photonic crystal fibers - fabricated using the stack-and-draw method from various in-house synthesized oxide soft glasses at the Glass Department of the Institute of Electronic Materials Technology (ITME). The discussion covers fundamental aspects of stack-and-draw technology used at ITME, through design methods, soft glass material issues and parameters, to demonstration of representative examples of fabricated structures and an experimental characterization of their optical properties and results obtained in typical applications. Specifically, demonstrators include microstructured image guides providing resolution of up to 16000 pixels sized up to 20 μm in diameter, and various photonic crystal fibers (PCFs): index-guiding regular lattice air-hole PCFs, hollow core photonic bandgap PCFs, or specialty PCFs like highly birefringent microstructured fibers or highly nonlinear fibers for supercontinuum generation. The presented content is put into context of previous work in the area reported by the group of authors, as well as other research teams.

scholarly journals Photonic Crystal Mikaelian Lenses and Their Potential Use as Transverse Focusing Elements in Microstructured Fibers

2013 ◽  
Vol 5 (4) ◽  
pp. 7100512-7100512 ◽  
Author(s):  
T. Baghdasaryan ◽  
T. Geernaert ◽  
H. Thienpont ◽  
F. Berghmans
Keyword(s):  
Photonic Crystal ◽  
Microstructured Fibers ◽  
Potential Use

scholarly journals Polarization Properties of Solid-Core Photonic Crystal Fibers for 1550 nm

2021 ◽  
pp. 58-71
Author(s):  
Marco Antonio Cortez-Herrera ◽  
Diana Tentori
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fibers ◽  
Solid Core ◽  
Polarization Dependent Loss ◽  
Microstructured Fibers ◽  
Large Mode Area ◽  
Different Types ◽  
Crystal Fibers ◽  
Mode Area

Due to its microstructure, photonic crystal fibers present wavelength regions with polarization-dependent loss, an aspect not observed in conventional fibers. We include this fact in their polarization characterization. In this research, the use of polarimetric methods to two different types of large-mode-area microstructured fibers has shown that both samples exhibited elliptical birefringence with residual torsion. We present the modifications required to perform the evaluation and justify its theoretical bases.

Hole-Assisted Lightguide Fiber - A Practical Derivative of Photonic Crystal Fiber

2002 ◽  
Vol 722 ◽  
Author(s):  
Takemi Hasegawa ◽  
Eisuke Sasaoka ◽  
Masashi Onishi ◽  
Masayuki Nishimura ◽  
Yasuhide Tsuji ◽  
...  
Keyword(s):  
Optical Properties ◽  
Photonic Crystal ◽  
Group Velocity ◽  
Fiber Optics ◽  
Optical Fibers ◽  
Velocity Dispersion ◽  
Transmission Loss ◽  
Photonic Bandgap ◽  
Group Velocity Dispersion ◽  
Microstructured Fibers

AbstractUsage of air holes in optical fibers has become a hot subject in fiber optics because of the possibilities for novel transmission properties. Although photonic crystal fibers based on photonic bandgap guidance are the most drastic innovation in this subject, optical fibers containing air holes but not having photonic crystal structures are also being intensively studied. Such air-silica microstructured fibers are more practical than the photonic bandgap fibers because the lack of photonic crystal structure makes the fabrication far easier. Even without the photonic bandgap, the microstructured fibers can exhibit valuable properties in terms of group velocity dispersion and nonlinearity, because the index contrast between air and silica is 10 or more times as large as that of the conventional optical fibers based on doped silica glasses. However, one of the major challenges for practical applications of the air-silica microstructured fibers has been their high transmission losses, which have been several tens to hundreds times higher than those of the conventional fibers. As a solution to this problem, we have proposed a more practical structure called hole-assisted lightguide fiber (HALF). In addition to the air holes for realizing novel optical properties, this structure has a material index profile for waveguiding, and hence is closer to the conventional fibers than the other microstructured fibers are. As a result, novel optical properties can be realized without severe degradation in transmission loss. In experiments, an anomalous group velocity dispersion as large as +35 ps/nm/km at 1550 nm wavelength, which would be unattainable in the conventional fibers, has been realized with a loss of 0.41 dB/km, which is comparable to those of the conventional fibers. Analyses of the losses of the fabricated HALFs suggest that the loss should be lowered by mitigating the effect of the drawing tension and minimizing the power fraction in the holes. It is also shown that the full-vector finite element method realizes accurate modeling of the properties such as dispersion and macrobend loss.

Enhanced Artificial Intelligent Method for Representing the Photonic Crystal Fiber Profile Index

2018 ◽  
Vol 1 (1) ◽  
pp. 2-19
Author(s):  
Mahmood Sh. Majeed ◽  
Raid W. Daoud
Keyword(s):  
Genetic Algorithms ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
New Method ◽  
Proper Solution ◽  
Artificial Intelligent ◽  
Crystal Fiber ◽  
Fitness Value ◽  
First Pass ◽  
Crossover And Mutation

A new method proposed in this paper to compute the fitness in Genetic Algorithms (GAs). In this new method the number of regions, which assigned for the population, divides the time. The fitness computation here differ from the previous methods, by compute it for each portion of the population as first pass, then the second pass begin to compute the fitness for population that lye in the portion which have bigger fitness value. The crossover and mutation and other GAs operator will do its work only for biggest fitness portion of the population. In this method, we can get a suitable and accurate group of proper solution for indexed profile of the photonic crystal fiber (PCF).

Modulation Dynamics For QD Laser On Photonic Crystal

2018 ◽  
Vol 8 (3) ◽  
pp. 172-188
Author(s):  
M. Abdulmahdi ◽  
S. Sarsooh ◽  
M. Oleiwi
Keyword(s):  
Photonic Crystal

Dynamic control of photonic crystal nanocavities for photon manipulation

2014 ◽  
Vol 1 ◽  
pp. 356-359
Author(s):  
Yoshinori Tanaka ◽  
Takashi Asano ◽  
Susumu Noda
Keyword(s):  
Photonic Crystal ◽  
Dynamic Control

Dispersion Compensating Square Photonic Crystal Fiber for Optical Communication Systems

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