scholarly journals Loop-mirror-based slot waveguide refractive index sensor

AIP Advances ◽  
2012 ◽  
Vol 2 (4) ◽  
pp. 042142 ◽  
Author(s):  
Jun-long Kou ◽  
Fei Xu ◽  
Yan-qing Lu
Keyword(s):  
Refractive Index ◽  
Refractive Index Sensor ◽  
Slot Waveguide ◽  
Loop Mirror

Optimization of a liquid refractive index sensor based on an integrated optic slot-waveguide directional coupler

Optik ◽  
2019 ◽  
Vol 180 ◽  
pp. 984-990
Author(s):  
Moon Hee Kang ◽  
Nari Kim ◽  
Yong Hyun Kim ◽  
Changhun Yun
Keyword(s):  
Refractive Index ◽  
Directional Coupler ◽  
Refractive Index Sensor ◽  
Slot Waveguide

scholarly journals Ambient Refractive-Index Measurement with Simultaneous Temperature Monitoring Based on a Dual-Resonance Long-Period Grating Inside a Fiber Loop Mirror Structure

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2370 ◽  
Author(s):  
Renata Zawisza ◽  
Tinko Eftimov ◽  
Predrag Mikulic ◽  
Wojtek Bock ◽  
Leszek Jaroszewicz
Keyword(s):  
Refractive Index ◽  
Experimental Results ◽  
Refractive Index Sensor ◽  
Long Period Grating ◽  
Long Period ◽  
Dual Resonance ◽  
Fiber Loop Mirror ◽  
Loop Mirror ◽  
Optical Structure ◽  
Fiber Loop

In this work, we report the experimental results on optimizing the optical structure for ambient refractive index measuring with temperature changes monitoring. The presented optical structure is based on a dual-resonance long-period grating embedded inside a fiber loop mirror, where the long-period grating acts as the head of the refractive-index sensor, whereas the section of polarization maintaining fiber in the loop mirror ensures suitable temperature sensing. The optimization process was comprised of tuning the resonance and interferometric peaks by changing the state of polarization of propagating beams. Experimental results establish that the response of the proposed sensor structure is linear and goes in opposite directions: an increase in the ambient refractive index reduces the signal response, whereas a temperature increase produces an increased response. This enables us to distinguish between the signals from changes in the refractive index and temperature. Due to the filtering properties of the interferometric structure, it is possible to monitor variation in these physical parameters by observing optical power changes instead of wavelength shifts. Hence, the refractive index sensitivity has been established up to 2375.8 dB/RIU in the narrow RI range (1.333–1.341 RIU) and temperature sensitivities up to 1.1 dBm/°C in the range of 23–41 °C. The proposed sensor is dedicated to advanced chemical and biological sensor applications.

Liquid Refractive Index Sensor Based on a Polarization-Maintaining Fiber Loop Mirror

2013 ◽  
Vol 13 (5) ◽  
pp. 1721-1724 ◽  
Author(s):  
Jianfeng Wang ◽  
Changyu Shen ◽  
Yanfang Lu ◽  
Debao Chen ◽  
Chuan Zhong ◽  
...  
Keyword(s):  
Refractive Index ◽  
Refractive Index Sensor ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining ◽  
Fiber Loop Mirror ◽  
Loop Mirror ◽  
Fiber Loop

scholarly journals On-chip temperature compensation in an integrated slot-waveguide ring resonator refractive index sensor array

2010 ◽  
Vol 18 (4) ◽  
pp. 3226 ◽  
Author(s):  
Kristinn B. Gylfason ◽  
Carl F. Carlborg ◽  
Andrzej Kazmierczak ◽  
Fabian Dortu ◽  
Hans Sohlström ◽  
...  
Keyword(s):  
Refractive Index ◽  
Temperature Compensation ◽  
Sensor Array ◽  
Ring Resonator ◽  
Refractive Index Sensor ◽  
Slot Waveguide ◽  
Chip Temperature ◽  
Waveguide Ring ◽  
On Chip

scholarly journals Low-Cost and Highly Sensitive Liquid Refractive Index Sensor Based on Polymer Horizontal Slot Waveguide

2019 ◽  
Vol 10 (1) ◽  
pp. 7-15 ◽  
Author(s):  
Xiaoxia Ma ◽  
Kaixin Chen ◽  
Jieyun Wu ◽  
Lingfang Wang
Keyword(s):  
Refractive Index ◽  
Low Cost ◽  
Refractive Index Sensor ◽  
Slot Waveguide ◽  
Highly Sensitive
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