激光器阵列的非本征理想因子

Extrinsic Ideality Factor of Laser Array

研究了激光器阵列的电导数表征方法,建立了激光器阵列的等效电路模型,导出了理想情况下阵列的电导数公式.理论、PSPICE仿真和实验结果表明:一致性良好的阵列的非本征理想因子等于每个阵列单元的非本征理想因子,该结论可用于对阵列单元非本征理想因子检测与阵列可靠性研究.导致单元本征理想因子变大,电流泄漏的可靠性问题均可导致阵列非本征理想因子变大.

An equivalent circuit model of a laser array is established,and simulated processes are imposed on the model using PSPICE. The simulated and experimental results indicate that the ideality factor of the laser array is equal to that of its elements,and the current leakage and abnormal ideality factor variation of elements can result in the increase of the ideality factor of the laser array. We propose a new method to detect the ideality factor of a laser array element by using an electrical derivative test of the laser array,and we also propose the use of the ideality factor of a laser array as a screen to estimate the reliability the array.