Laser & Optoelectronics Progress, Volume. 47, Issue 2, 20601(2010)
Self-Mixing Speckle and Dynamic Target Distance Measurement Using Erbium-Doped Fiber Ring Laser
A new method of dynamic target distance measurement based on self-mixing speckle in an erbium-doped fiber-optic ring laser is studied. The model of self-mixing speckle measurement system is presented,and the theoretical analysis of the production of self-mixing speckle signal is also given. Through the experiments,the dynamic speckle signal is obtained. The spectrum energy density analysis is applied to the dynamic speckle signals,and a linear relationship between the spectrum energy density and the detection distance is obtained. The result shows that highly precise distance dynamic measurements can be performed by using self-mixing speckle and fiber laser.
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Han Daofu, Yu Jin, Ma Li, Qi Xiaoping. Self-Mixing Speckle and Dynamic Target Distance Measurement Using Erbium-Doped Fiber Ring Laser[J]. Laser & Optoelectronics Progress, 2010, 47(2): 20601
Category: Fiber Optics and Optical Communications
Received: Apr. 17, 2009
Accepted: --
Published Online: Jan. 28, 2010
The Author Email: Daofu Han (dfhan@ncu.dedu.cn)