Abstract:
Design of InGaAs-InAlAs multiple-quantum-well (MQW) optical modulators is described by employing the step segment method (SSM), the three-dimensional beam propagation met...Show MoreMetadata
Abstract:
Design of InGaAs-InAlAs multiple-quantum-well (MQW) optical modulators is described by employing the step segment method (SSM), the three-dimensional beam propagation method (3-D BPM), and the lumped element circuit model. Optical waveguides are treated as materials with complex refractive index. Field distributions, power confinement factors ( Gamma factors), propagation losses, etc. are calculated. It is found that the overlap integral is needed to calculate accurately coupling losses between the optical waveguides and single-mode fibers in place of the simple Gaussian beam-coupling formula and that quasi-single-mode propagation can be obtained even for thick core structures. Design procedures for the driving voltage, and frequency characteristics are also discussed.<>
Published in: IEEE Journal of Quantum Electronics ( Volume: 28, Issue: 1, January 1992)
DOI: 10.1109/3.119517
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Optical Fiber ,
- Absorption Coefficient ,
- Field Distribution ,
- Exciton ,
- Optical Modes ,
- Wide Bandwidth ,
- Network Bandwidth ,
- Rectangular Waveguide ,
- Single-mode Fiber ,
- Propagation Loss ,
- R-factor ,
- Lumped Elements ,
- Complex Refractive Index ,
- Coupling Loss ,
- Overlap Integral ,
- Electrode ,
- Layer Thickness ,
- Electromagnetic Field ,
- Frequency Response ,
- Function Of Frequency ,
- Core Thickness ,
- Optical Power ,
- Function Of Thickness ,
- Optical Response ,
- Extinction Ratio ,
- Coplanar Waveguide ,
- Waveguide Length ,
- TE Mode ,
- Capping Layer ,
- Gaussian Beam
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Optical Fiber ,
- Absorption Coefficient ,
- Field Distribution ,
- Exciton ,
- Optical Modes ,
- Wide Bandwidth ,
- Network Bandwidth ,
- Rectangular Waveguide ,
- Single-mode Fiber ,
- Propagation Loss ,
- R-factor ,
- Lumped Elements ,
- Complex Refractive Index ,
- Coupling Loss ,
- Overlap Integral ,
- Electrode ,
- Layer Thickness ,
- Electromagnetic Field ,
- Frequency Response ,
- Function Of Frequency ,
- Core Thickness ,
- Optical Power ,
- Function Of Thickness ,
- Optical Response ,
- Extinction Ratio ,
- Coplanar Waveguide ,
- Waveguide Length ,
- TE Mode ,
- Capping Layer ,
- Gaussian Beam
