分析了腔镜反射率、量子阱数等参数对阈值电流、输出光功率的影响，并根据理论计算对器件参数进行了优化设计。
The effects of DBR reflectivity and well Numbers on threshold current and output power of bottom-emitting VCSELs were analyzed to design an optimal device structure.
通过优化脊形波导的结构参数可以降低脊形波导激光器的阈值电流，提出了实现亚微米脊宽，从而降低阈值电流的方法。
It is found that optimization of the structure parameters of ridge waveguide (RWG) can decrease the threshold current of RWG laser diode.
最后优化工艺参数，制备出具有低阈值、高对比度的PDLC薄膜。
Optimize the environment factors to prepare PDLC films with the best quality, low threshold-voltage and high CR(contrast ratio).
最后优化工艺参数，制备出具有低阈值、高对比度的PDLC薄膜。
Optimize the environment factors to prepare PDLC films with the best quality, low threshold-voltage and high CR(contrast ratio).
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