A single mode hybrid cladding circular photonic crystal fiber dispersion compensation and sensing applications

A novel type of highly birefringent photonic crystal fiber is designed, which yields to promise a very large birefringence [Formula: see text] with flat dispersion at the operating wavelength 1550 nm. By employing the FDTD method, other properties, such as dispersion, walk-off effect and [Formula: see text]-parameters, are highly optimized using lattice period of air holes.

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Highly birefringent single mode spiral shape photonic crystal fiber based sensor for gas sensing applications

Sensing and Bio-Sensing Research ◽

10.1016/j.sbsr.2017.04.001 ◽

2017 ◽

Vol 14 ◽

pp. 30-38 ◽

Cited By ~ 11

Author(s):

Ibadul Islam ◽

Bikash Kumar Paul ◽

Kawsar Ahmed ◽

Rabiul Hasan ◽

Sawrab Chowdhury ◽

...

Keyword(s):

Photonic Crystal ◽

Photonic Crystal Fiber ◽

Gas Sensing ◽

Single Mode ◽

Crystal Fiber ◽

Sensing Applications ◽

Spiral Shape

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Design of single mode spiral photonic crystal fiber for gas sensing applications

Sensing and Bio-Sensing Research ◽

10.1016/j.sbsr.2017.03.001 ◽

2017 ◽

Vol 13 ◽

pp. 55-62 ◽

Cited By ~ 16

Author(s):

Md. Ibadul Islam ◽

Kawsar Ahmed ◽

Sayed Asaduzzaman ◽

Bikash Kumar Paul ◽

Touhid Bhuiyan ◽

...

Keyword(s):

Photonic Crystal ◽

Photonic Crystal Fiber ◽

Gas Sensing ◽

Single Mode ◽

Crystal Fiber ◽

Sensing Applications

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Proposed Square Lattice Photonic Crystal Fiber for Extremely High Nonlinearity, Birefringence and Ultra-High Negative Dispersion Compensation

Journal of Optical Communications ◽

10.1515/joc-2017-0095 ◽

2019 ◽

Vol 40 (4) ◽

pp. 401-410 ◽

Cited By ~ 7

Author(s):

Md. Ibadul Islam ◽

Kawsar Ahmed ◽

Shuvo Sen ◽

Bikash Kumar Paul ◽

Md. Shadidul Islam ◽

...

Keyword(s):

Photonic Crystal ◽

Photonic Crystal Fiber ◽

Dispersion Compensation ◽

Chromatic Dispersion ◽

Single Mode ◽

Square Lattice ◽

Geometrical Properties ◽

High Birefringence ◽

Crystal Fiber ◽

Negative Dispersion

Abstract A photonic crystal fiber in square lattice architecture is numerically investigated and proposed for broadband dispersion compensation in optical transmission system. Simulation results reveal that it is possible to obtain an ultra-high negative dispersion of about −571.7 to −1889.7 (ps/nm.km) in the wavelength range of 1340 nm to 1640 nm. Experimentally it is demonstrated that the design fiber covers a high birefringence of order 4.74×10‒3 at the wavelength of 1550 nm. Here, numerical investigation of guiding properties and geometrical properties of the proposed PCF are conducted using the finite element method (FEM) with perfectly match layers. Moreover, it is established more firmly that the proposed fiber successfully compensates the chromatic dispersion of standard single mode in entire band of interest. Our result is attractive due to successfully achieve ultra-high negative dispersion that is more promisor than the prior best results.

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Enhancement the sensitivity of humidity sensor based on an agarose infiltration reflection-type photonic crystal fiber interferometer

Iraqi Journal of Physics (IJP) ◽

10.30723/ijp.v15i35.56 ◽

2018 ◽

Vol 15 (35) ◽

pp. 83-91

Author(s):

Hassan F. Hassan

Keyword(s):

Photonic Crystal ◽

Response Time ◽

Photonic Crystal Fiber ◽

Humidity Sensor ◽

High Sensitivity ◽

Single Mode ◽

Clinical Situation ◽

Single Mode Fiber ◽

Crystal Fiber ◽

Sensing Applications

Photonic Crystal Fiber Interferometers (PCFIs) are widely used for sensing applications. This work presents the fabrication and study the characterization of a relative humidity sensor based on a polymer-infiltrated photonic crystal fiber that operates in a Mach- Zehnder Interferometer (MZI) reflection mode. The fabrication of the sensor only involves splicing and cleaving Photonic Crystal Fiber (PCF) with Single Mode Fiber (SMF). A stub of (LMA-10) PCF spliced to SMF (Corning-28). In the splice regions. The PCFI sensor operation based on the adsorption and desorption of water vapour at the silica-air interface within the PCF. The sensor shows a high sensitivity to RH variations from (27% RH - 95% RH), with a change in its reflected power and the position of the interference peaks is found to be shifted that the interference pattern with a 100 nm span can be observed with high humidity sensitivity of (8.49 pm / %RH) is achieved with compact (4mm) PCF length . The sensor has the advantages for suitable for monitoring humidity in microenvironments. The repeatability, long-term stability, measurement accuracy. Wide humidity range. The response time of the sensor is found to be 1.4 sec for a change in RH of 50 %RH. The fast response time suggests that the sensor can potentially be used as a human breath rate monitor in a clinical situation.

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