Journal of Optoelectronics·laser 

About: Journal of Optoelectronics·laser is an academic journal. The journal publishes majorly in the area(s): Fiber Bragg grating & Laser. Over the lifetime, 1677 publications have been published receiving 3583 citations.

A new analytical model for laser bending

Abstract: A new calculating formula on the bending angles of sheet metal was obtained.The formula involves in the energy (laser power,absorption,scanning velocity,laser spot diameter),geometric (sheet thickness) and material parameters (thermal expansion coefficient,heat specific,density,thermal conductivity,Youngs modulus,yield strength).The formula was tested by experiments.The experimental results show that hte precision of the formula is higher than that of the other formulae.And the minimal energy density that makes the sheet metal be deformed can be forecasted conveniently by the formula.It is helpful to the choice of process parameters,so it has higher engineering value.

Phase retrieval from coded diffraction patterns

Abstract: The classical iterative phase retrieval method has the disadvantages of poor anti-noise performance,and can not converge to the global optimal solution.The optimization of phase retrieval technology via PhaseCut(PC)transforms the phase retrieval problem into quadratic constrained convex programming problem,and gets the global optimal solution up to global phase.Some more structured and less random ternary masks and octonary masks are used to code the signal of interest to acquire diffraction patterns which can recover the missing phase information by solving PhaseCut.Simulations are firstly performed to test the one dimensional complex signal and compare the success rates of reconstruction using different masks.Secondly,the reconstruction results of two dimensional molecular images are compared for different masks.The results show that the method can obtain better reconstruction results than the traditional method which is based on binary masks.Moreover,the recovered phase distributions are loaded to the optical reconstruction system based on liquid crystal on silicon(LCOS).The diffraction pattern of real experiment proves the effectiveness of the proposed method.

Review of Applications for Fiber Bragg Grating Sensors

Abstract: This article presents a systematic review in applications of fiber Bragg grating sensors in many different fields including civil structures,aeronautics and space,ship and marine,oil and chemical industry,electric and unclear power industry,and medicine in the past decades.

Radius Constraint Least-square Circle Fitting Method and Error Analysis

Abstract: In the process of 3-D measurement of the workpiece in shape of arc with structured light vision sensor,feature data of the structured light arc is inadequate compared with the whole circle,which results in the location of the circle centre being of low precision.Least-squares method based on radius constraint is proposed in the paper to solve the problem.Influence of the noise in sample data the on the locating of circle centre is analyzed in detail,and simulated experiments are implemented.Results of experiments show that under the circumstances that feature data of the structured light arc is inadequate compared with the whole circle,the method proposed above can improve the accuracy of circle fitting efficiently.

A 3-Component Fiber Optic Accelerometer for Well Logging

Abstract: A 3-component(3-C) fiber-optic accelerometer suitable for well logging is presentedThe accelerometer can accomplish the 3-C measurement by multiplexing three unidirectional sensing elements,in which every one is based on a push-pull mass-spring structureExperimental results show good linearity,consistency and stabilityThe suitable measurement frequency range of the system is between 10 Hz and 800 HzThe difference between on-axis sensitivity and cross-sensitivity is 32 dB re rad/g,and minimum detectable level is 393 μg/Hz~(1/2)