Micro-temperature sensor based on optical whispering gallery mode of fiber taper-microsphere coupling system

2009 ◽  
Author(s):  
Qiulin Ma ◽  
Tobias Rossmann ◽  
Zhixiong Guo
Keyword(s):  
Temperature Sensor ◽  
Whispering Gallery Mode ◽  
Whispering Gallery ◽  
Coupling System ◽  
Fiber Taper

Fabrication, Characterization and Microsensing of Whispering-Gallery Mode Micro-Coupling Systems

2008 ◽  
Author(s):  
Qiulin Ma ◽  
Tobias Rossmann ◽  
Zhixiong Guo
Keyword(s):  
Transmission Loss ◽  
Coupling Efficiency ◽  
High Sensitivity ◽  
Single Mode ◽  
Whispering Gallery Mode ◽  
Single Mode Fiber ◽  
Whispering Gallery ◽  
Coupling System ◽  
Wide Range ◽  
Micro Sensor

An optical micro-coupling system of whispering-gallery mode usually consists of a resonator (e.g. a sphere) and a coupler (e.g. a taper). In this report, silica microspheres of 50–500 μm in diameter are fabricated by hydrogen flame fusing of an end of a single mode fiber or fiber taper. Fiber tapers are fabricated by the method of heating and pulling that meets an adiabatic condition. Taper’s waist diameter can routinely be made less than 1 μm and almost zero transmission loss in a taper is achieved which allows an effective and phase-matched coupling for a wide range sizes of microspheres. Both resonators and couplers’ surface microstructure and shapes are examined by scanning electronic microscopy. Three regimes of coupling are achieved, enabling a good flexibility to control Q value and coupling efficiency of a micro-coupling system. Whispering gallery mode shift is used to demonstrate a novel temperature micro-sensor. Its sensitivity determined from actual experimental results agrees well with the theoretical value. A concept of using the photon’s cavity ring down (CRD) in the microsphere to make a novel high-sensitivity trace gas micro-sensor is proposed. The CRD time constant when ammonia is chosen as the analyte gas is predicted using the simulated absorption lines.

scholarly journals Fluorescence whispering gallery modes in Tm3+-doped Ge-Ga-S chalcogenide glasses microsphere-silica fiber taper coupling system

2016 ◽  
Vol 65 (14) ◽  
pp. 144205
Author(s):  
Zhang Xing-Di ◽  
Wu Yue-Hao ◽  
Yang Zheng-Sheng ◽  
Dai Shi-Xun ◽  
Zhang Pei-Qing ◽  
...  
Keyword(s):  
Chalcogenide Glasses ◽  
Whispering Gallery Modes ◽  
Silica Fiber ◽  
Whispering Gallery ◽  
Coupling System ◽  
Fiber Taper

Whispering gallery mode laser based on cholesteric liquid crystal microdroplets as temperature sensor

2017 ◽  
Vol 402 ◽  
pp. 181-185 ◽  
Author(s):  
Liyuan Zhao ◽  
Yan Wang ◽  
Yonggui Yuan ◽  
Yongjun Liu ◽  
Shuangqiang Liu ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Temperature Sensor ◽  
Cholesteric Liquid Crystal ◽  
Whispering Gallery Mode ◽  
Mode Laser ◽  
Whispering Gallery

Phase-matched excitation of whispering-gallery-mode resonances by a fiber taper

1997 ◽  
Vol 22 (15) ◽  
pp. 1129 ◽  
Author(s):  
J. C. Knight ◽  
G. Cheung ◽  
F. Jacques ◽  
T. A. Birks
Keyword(s):  
Whispering Gallery Mode ◽  
Whispering Gallery ◽  
Fiber Taper

Whispering-gallery-mode laser at 156  μm excited by a fiber taper

2001 ◽  
Vol 26 (14) ◽  
pp. 1051 ◽  
Author(s):  
F. Lissillour ◽  
D. Messager ◽  
G. Stéphan ◽  
P. Féron
Keyword(s):  
Whispering Gallery Mode ◽  
Mode Laser ◽  
Whispering Gallery ◽  
Fiber Taper

Whispering gallery mode temperature sensor of liquid microresonastor

2016 ◽  
Vol 41 (20) ◽  
pp. 4649 ◽  
Author(s):  
Zhihai Liu ◽  
Lu Liu ◽  
Zongda Zhu ◽  
Yu Zhang ◽  
Yong Wei ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
Whispering Gallery Mode ◽  
Whispering Gallery
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