کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1533421 | 1512557 | 2016 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Two-way reflector based on two-dimensional sub-wavelength high-index contrast grating on SOI Two-way reflector based on two-dimensional sub-wavelength high-index contrast grating on SOI](/preview/png/1533421.png)
• The proposed design of two-way reflector on SOI provides high reflectivity.
• Normal and oblique/grazing angles of incidence are used.
• The same reflector design can be used to make VCSEL mirror and planar waveguide.
• It's large reflection bandwidth acts as an advantage for broadband photonic devices.
A two-dimensional (2D) high-index contrast grating (HCG) is proposed as a two-way reflector on Silicon-on-insulator (SOI). The proposed reflector provides high reflectivity over two (practically important) sets of angles of incidence- normal(θ=0°)(θ=0°) and oblique/grazing (θ=80°−85°/90°θ=80°−85°/90°). Analytical model of 2D HCG is presented using improved Fourier modal method. The vertical incidence is useful for application in VCSEL while oblique/grazing incidence can be utilized in high confinement (HCG mirrors based) hollow waveguides and Bragg reflectors. The proposed two-way reflector also exhibits a large reflection bandwidth (around telecom wavelength) which is an advantage for broadband photonic devices.
Journal: Optics Communications - Volume 366, 1 May 2016, Pages 266–270