Nonlinear performance in silicon nitride slow light photonic crystal waveguides with elliptical holes

作者：Janrao Nagesh^*; Janyani Vijay

来源：Optik, 2014, 125(13): 3081-3084.

DOI：10.1016/j.ijleo.2014.01.018

• Photonic crystals
• Elliptical holes
• Group index
• Silicon nitride
• Slow down factor

We propose a slow-light photonic crystal waveguide, which uses a combination of circular and elliptical air holes arranged in a hexagonal lattice with the background material of silicon nitride (refractive index n = 2.06). Large value of normalized delay bandwidth product (NDBP = 0.3708) is obtained. We have analyzed nonlinear performance of the structure. With our proposed geometry strong SPM is observed at moderate peak power levels. Proposed photonic crystal waveguide has slow light applications such as reduction in length and power consumption of all-optical and electro-optic switches at optical frequency.

• 出版日期2014