研究目的
Investigating the design and performance of zero-birefringence silicon slot waveguides with L-rails for photonic sensing and optical signal processing applications.
研究成果
The study demonstrates that a polarization-independent silicon slot waveguide with greater tolerance to sidewall variations can be achieved using L-rails, enabling a novel waveguide platform for sidewall modulated photonic components such as Bragg gratings with low coupling coefficients.
研究不足
The study is limited to simulations and does not include experimental validation of the proposed waveguide design.
1：Experimental Design and Method Selection:
The study involves the design of silicon slot waveguides with L-rails through full-vectorial computations to achieve zero birefringence.
2：Sample Selection and Data Sources:
The study uses modal analysis to determine optimal waveguide dimensions at a wavelength of 1550 nm.
3：List of Experimental Equipment and Materials:
Silicon slot waveguides with L-rails buried in SiO2 clad are used.
4：Experimental Procedures and Operational Workflow:
The study compares the sensitivity of slot confinement factor and effective index of the TE00 mode to width variation in regular strip-rail and L-rail.
5：Data Analysis Methods:
The study analyzes modal effective indices as functions of slab width, slot width, and slab height to obtain zero birefringence.
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