研究目的
Investigating the design and efficiency of a polarization modulator using asymmetrically coupled multiple quantum wells (MQW) for improved modulation efficiency.
研究成果
The proposed TSACQW structure demonstrates a significant improvement in polarization-dependent refractive index change, enabling highly efficient polarization modulators. This design offers a promising approach for realizing compact, high-speed polarization modulators on the monolithic InP platform.
研究不足
The study is based on numerical simulations, and practical implementation may face challenges related to material growth and device fabrication. The performance under high-speed modulation conditions is not explored.
1：Experimental Design and Method Selection:
The study employs numerical analysis to design and evaluate the performance of a polarization modulator using asymmetrically coupled MQW. The theoretical model focuses on the abnormal quantum-confined Stark effect (QCSE) for enhanced modulation efficiency.
2：Sample Selection and Data Sources:
The design is based on InGaAsP material for operation at 1550-nm wavelength, with specific strain and bandgap adjustments for optimal performance.
3：List of Experimental Equipment and Materials:
The study involves the use of metal-organic vapor phase epitaxy (MOVPE) for material growth, with detailed specifications for the MQW layers.
4：Experimental Procedures and Operational Workflow:
The workflow includes the design of the MQW structure, numerical simulation of absorption spectra and refractive index changes under varying electric fields, and comparison with conventional uniform QW designs.
5：Data Analysis Methods:
The analysis involves calculating the refractive index modulation using the Kramers-Kronig relation from the absorption spectra to evaluate the polarization-dependent phase modulation efficiency.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
