scholarly journals Design of Spectral Filters Based on Linear Polarized Mode Coupling of Optical Fibers

2020 ◽  
Vol 9 (5) ◽  
pp. 814-817
Keyword(s):  
Optical Fibers ◽  
Mode Coupling ◽  
Dielectric Waveguide ◽  
Spectral Characteristics ◽  
Dispersion Characteristics ◽  
Spectral Bandwidth ◽  
Optical Fiber Coupler ◽  
Spectral Filters ◽  
Fiber Coupler ◽  
The Finite Difference Method

Design of optical spectral filters based on mode coupling of optical fibers is presented. The finite difference method is applied to evaluate the dispersion characteristics of optical fiber coupler which is constructed from two fibers as a composite multi-dielectric waveguide with different cores but the same cladding. Also, power and field distributions for both fibers as a separate and as a composite waveguide are investigated. The spectral characteristics of the filters are computed depending on the coupling of two linear polarized modes LP01 and LP11. The dependence of the transmission coefficient on operating wavelengths is illustrated. Finally, the spectral bandwidth of filter as a function of the distance between the two cores is addressed.

Dispersion properties of single-mode optical fibers in telecommunication region: poly (methyl methacrylate) (PMMA) versus silica

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Hassan Pakarzadeh ◽  
Seyed Mostafa Rezaei ◽  
Mostafa Taghizadeh ◽  
Forough Bozorgzadeh
Keyword(s):  
Methyl Methacrylate ◽  
Optical Fibers ◽  
Spectral Range ◽  
Structural Parameters ◽  
Practical Importance ◽  
Single Mode ◽  
Dispersion Characteristics ◽  
Poly Methyl Methacrylate ◽  
Dispersion Wavelength ◽  
Zero Dispersion Wavelength

AbstractIn this paper, the dispersion characteristics of two standard single-mode optical fibers (SMFs), fabricated with silica and poly (methyl methacrylate) (PMMA) are studied in telecommunication spectral regions. The effect of structural parameters, such as the radius of the fiber core and the relative core-cladding index difference, is numerically investigated. It is found that over whole spectral range, the PMMA-based SMF shows lower dispersion than the silica SMF. Also, the zero-dispersion wavelength (ZDW) of PMMA-based SMF is longer than that of silica fiber. The results may be of practical importance for the telecommunication applications.

Resonant Channel-Dropping Filter with Integrated Detector System Based on Optical Fiber Coupler and Microsphere

2004 ◽  
Vol 43 (8B) ◽  
pp. 5878-5881 ◽  
Author(s):  
Ali Serpengüzel ◽  
Adnan Kurt ◽  
Temel B\uil\uic\ui ◽  
cSenol İşç\ui ◽  
Yi\~git Ozan Yilmaz
Keyword(s):  
Optical Fiber ◽  
Detector System ◽  
Optical Fiber Coupler ◽  
Fiber Coupler ◽  
Integrated Detector

Optical fiber coupler array for multi-point sound field measurements

1997 ◽  
Vol 4 (1) ◽  
pp. A65-A68 ◽  
Author(s):  
Kentaro Nakamura ◽  
Koichiro Fukaya
Keyword(s):  
Optical Fiber ◽  
Sound Field ◽  
Field Measurements ◽  
Optical Fiber Coupler ◽  
Fiber Coupler

High-resolution confocal detection of nanometric displacement by use of a 2 × 1 optical fiber coupler

2000 ◽  
Vol 25 (23) ◽  
pp. 1696 ◽  
Author(s):  
Joon Ho Bae ◽  
Ki Hyun Kim ◽  
Mun Heon Hong ◽  
Chang Hun Gim ◽  
Wonho Jhe
Keyword(s):  
High Resolution ◽  
Optical Fiber ◽  
Optical Fiber Coupler ◽  
Fiber Coupler ◽  
Confocal Detection

scholarly journals Microfluidic Method of Pig Oocyte Quality Assessment in relation to Different Follicular Size Based on Lab-on-Chip Technology

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Bartosz Kempisty ◽  
Rafał Walczak ◽  
Paweł Antosik ◽  
Patrycja Sniadek ◽  
Marta Rybska ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Spectral Characteristics ◽  
Oocyte Quality ◽  
Lab On Chip ◽  
Chip Technology ◽  
Porcine Oocyte ◽  
Follicular Size ◽  
On Chip ◽  
Pig Oocyte

Since microfollicular environment and the size of the follicle are important markers influencing oocyte quality, the aim of this study is to present the spectral characterization of oocytes isolated from follicles of various sizes using lab-on-chip (LOC) technology and to demonstrate how follicle size may affect oocyte quality. Porcine oocytes (each,n=100) recovered from follicles of different sizes, for example, from large (>5 mm), medium (3–5 mm), and small (<3 mm), were analyzed after precedingin vitromaturation (IVM). The LOC analysis was performed using a silicon-glass sandwich with two glass optical fibers positioned “face-to-face.” Oocytes collected from follicles of different size classes revealed specific and distinguishable spectral characteristics. The absorbance spectra (microspectrometric specificity) for oocytes isolated from large, medium, and small follicles differ significantly (P<0.05) and the absorbance wavelengths were between 626 and 628 nm, between 618 and 620 nm, and less than 618 nm, respectively. The present study offers a parametric and objective method of porcine oocyte assessment. However, up to now this study has been used to evidence spectral markers associated with follicular size in pigs, only. Further investigations with functional-biological assays and comparing LOC analyses with fertilization and pregnancy success and the outcome of healthy offspring must be performed.

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