This paper derived the single mode condition for step type optical fiber.
文中导出了保证阶跃型光纤的单模特性条件。
Starting with waveguide ray theory, the condition for single-mode waveguide is derived, and design of single-mode strip waveguide is accomplished with effective index method.
从导波的射线理论出发，导出了波导单模条件，运用有效折射率法完成了单模波导的优化设计。
Study a compound mode multi-condition judge method, which , comparing with the single condition judge method , improve the recognition performance.
研究了一种复合模式多条件判决方法，与常规单条件判决方法相比提高了识别率。
The condition of steady state solution in the interaction between multi atom and single mode field is presented by using the method of drift matrix.
利用迁移矩阵方法，给出了多原子体系与单模腔场相互作用的稳态解条件。
Condition for single mode operation of DBR fibre laser is given based on rate equations theory. We apply it to the design by analyzing characteristics of grating reflectivity and some approximation.
基于速率方程理论，给出d BR光纤激光器单模运转的条件，并通过对光栅反射特性的分析及一些近似处理，进行了具体设计。
Condition for single mode operation of DBR fibre laser is given based on rate equations theory. We apply it to the design by analyzing characteristics of grating reflectivity and some approximation.
基于速率方程理论，给出d BR光纤激光器单模运转的条件，并通过对光栅反射特性的分析及一些近似处理，进行了具体设计。
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