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Physical optics analysis of the focusing grating coupler
Applied Optics
|June 5, 2010
Summary
A new numerical method models focusing chirped gratings for integrated optical data heads. This approach accounts for diffraction, aberrations, and illumination effects for improved device performance.
Area of Science:
- Optics
- Optical Engineering
- Computational Physics
Background:
- Integrated optical data heads are crucial for high-density data storage and retrieval.
- Chirped gratings offer unique focusing properties essential for miniaturized optical systems.
Purpose of the Study:
- To develop a numerical procedure for calculating the performance of focusing chirped gratings.
- To provide a comprehensive model for integrated optical data head design.
Main Methods:
- Utilizing Fourier optics and waveguide theory.
- Implementing a numerical procedure to simulate grating performance.
- Incorporating factors such as diffraction, aberrations, and non-uniform illumination.
Main Results:
- A validated numerical method for predicting focusing chirped grating performance.
- Quantification of the impact of diffraction, aberrations, and boundary effects.
- Demonstration of the method's applicability to integrated optical data head design.
Conclusions:
- The developed numerical procedure accurately predicts focusing chirped grating performance.
- The method accounts for critical optical phenomena affecting device functionality.
- This work facilitates the design and optimization of advanced integrated optical data heads.
