Influence of the upper waveguide layer thickness on optical field in asymmetric heterostructure quantum well laser diode

• 来源期刊: 中国光学快报(英文版)
• 学科: 工学
• 关键词: 结构层厚度 波导光学 量子阱激光器 异质 非对称 上游 激光二极管 发光波长
• 年，卷（期）: 2010,（5）
• 所属期刊栏目: Lasers and Laser Optics
• 页码范围: 493-495
• 页数: 3页
• 分类号: TN252 U416.217
• 语种: 英文

摘要

Asymmetric broad-waveguide separate-confinement heterostructure(BW-SCH) quantum well(QW) laser diode emitting at 808 nm is analyzed and designed theoretically.The dependence of the optical field distribution, vertical far-field angle,and internal loss on different thicknesses of the upper waveguide layer is calculated and analyzed.Calculated results show that when the thicknesses of the lower and upper waveguide layers are 0.45 and 0.3μm,respectively,for the devices with 100-μm-wide stripe and 1000-μm-lo...