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

2017 ◽  
Vol 14 ◽  
pp. 30-38 ◽  
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

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

2017 ◽  
Vol 13 ◽  
pp. 55-62 ◽  
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

Microstructure core photonic crystal fiber for gas sensing applications

2015 ◽  
Vol 54 (29) ◽  
pp. 8637 ◽  
Author(s):  
Monir Morshed ◽  
Md. Imran Hassan ◽  
Tusher Kanti Roy ◽  
Muhammad Shahin Uddin ◽  
S. M. Abdur Razzak
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Gas Sensing ◽  
Crystal Fiber ◽  
Sensing Applications

Endlessly single-mode photonic crystal fiber with high birefringence for sensing applications

2020 ◽  
Vol 34 (06) ◽  
pp. 2050077 ◽  
Author(s):  
Mohit Sharma ◽  
Vaishali Dixit ◽  
S. Konar ◽  
Kawsar Ahmed ◽  
Vigneswaran Dhasarathan
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Fdtd Method ◽  
Single Mode ◽  
Lattice Period ◽  
High Birefringence ◽  
Crystal Fiber ◽  
Sensing Applications ◽  
Operating Wavelength

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.

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

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.

Endlessly single-mode photonic crystal fiber

1997 ◽  
Vol 22 (13) ◽  
pp. 961 ◽  
Author(s):  
T. A. Birks ◽  
J. C. Knight ◽  
P. St. J. Russell
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Single Mode ◽  
Crystal Fiber
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