Theoretical analysis of seawater depth and temperature measurement with C-type micro-structured fiber grating
Optical Fiber Technology(2019)
Abstract
•A new C-type grating structure was proposed for simultaneous measurement.•Because wedge-shaped defects got introduce, high birefringence was excited.•Thermo sensitive materials filled in micro pores to improve the performance.•Established a mathematical model of birefringence effect in C-type structure.•Analyzed stress distribution in all directions under two disturbances.
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Key words
C-type micro-structured grating,Depth measurement,Temperature sensor,Optical fiber sensor,Seawater measurement
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