Mode Conversion Caused By Refractive Index Fluctuations And Its Effect On Directional Coupler Switches

1988 ◽  
Author(s):  
C. John Artura ◽  
R. Aaron Falk
Keyword(s):  
Refractive Index ◽  
Directional Coupler ◽  
Mode Conversion

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

Monitoring of Various Stages of Malaria Using Miniature Fibre Coupler Sensor Device

2020 ◽  
Vol 18 (11) ◽  
pp. 819-824
Author(s):  
Shilpa Kulkarni ◽  
Sujata Patrikar
Keyword(s):  
Refractive Index ◽  
Light Source ◽  
Human Blood ◽  
Continuous Monitoring ◽  
Directional Coupler ◽  
Low Cost ◽  
Embedded Device ◽  
Malarial Infection ◽  
Sensor Device ◽  
Micrometer Size

A micrometer size, simple, and low-cost sensor for continuous monitoring of human blood during malarial infection at its various stages is proposed in this work. The sensor comprises a light source, silica fiber directional coupler, and an optoelectronic photodetector. The sensor is simulated for fiber diameters from 1–1.8 #x03BC;m and optimization is done. The sensor produces a photocurrent of a few mA, which gives the level of infection. It can detect a change in refractive index, of the order of 10−5, and needs a small sensing length of a few μm. It can be potentially built as an integrated embedded device.

scholarly journals Fiber-interface directional coupler inscribed by femtosecond laser for refractive index measurements

2020 ◽  
Vol 28 (10) ◽  
pp. 14263 ◽  
Author(s):  
Jinli Han ◽  
Yunfang Zhang ◽  
Changrui Liao ◽  
Yuying Jiang ◽  
Ying Wang ◽  
...  
Keyword(s):  
Refractive Index ◽  
Femtosecond Laser ◽  
Directional Coupler
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