与单模光纤高效耦合的超辐射二极管优化设计

为了提高脊波导结构的超辐射二极管(SLD)与单模光纤的耦合功率,研究了有源区与脊之间的残留层和上光限制层的厚度对SLD输出功率和近场光斑的影响.考虑了注入载流子横向分布的不均匀,较准确地计算了模式增益.结果表明,通过对残留层和上光限制层厚度的优化,可以有效提高SLD与单模光纤的耦合功率.

Optimization Design of Superluminescent Diodes with RWG Structure for High Efficiency Coupling with SMFs

With the aim of achieving high coupling power of RWG SLDs into SMFs, the structure dependences of the output power and the near field pattern are investigated. The thicknesses of the layers between the active region and the ridge waveguide are optimized by taking into account the injected carrier distribution and local material gain in the SLD cross section.