3 December 2014 Study on the DFB fiber laser accelerometer with a metal-shell-packaged single-cylinder mandrel structure
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Abstract
To realize the miniature of fiber laser accelerometers, a metal-shell-packaged single-cylinder mandrel-structured distributed feedback (DFB) fiber laser accelerometer was proposed, whose key sensing component is the DFB fiber laser with a cavity length of 16mm. Simulation results show that when the weight of the mass is 400g, the radius of the thin shell cylinder is 0.5cm, we will find that the resonance frequency of the sensor is 900Hz and its sensitivity reaches 18.1pm/g. It is also shown that its sensitivity achieved 42.8dB.re.rad/g while demodulated by an unbalanced Michelson optical fiber interferometer with 1m path difference. In addition, the effects of its structure and material parameters on the acceleration sensitivity are also studied.
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Haitao Li, Lina Ma, Huayong Yang, Hong Luo, "Study on the DFB fiber laser accelerometer with a metal-shell-packaged single-cylinder mandrel structure", Proc. SPIE 9297, International Symposium on Optoelectronic Technology and Application 2014: Laser and Optical Measurement Technology; and Fiber Optic Sensors, 929734 (3 December 2014); doi: 10.1117/12.2073150; https://doi.org/10.1117/12.2073150
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