Multiple beam splitting to free space from a V groove in a photonic crystal waveguide

作者：Chen, Z. -H.; Yu, Z. -Y.; Liu, Y. -M.; Lu, P. -F.; Fu, Y.^*

来源：Applied Physics B: Lasers and Optics , 2011, 102(4): 857-861.

DOI：10.1007/s00340-010-4285-2

• DIRECTIONAL EMISSION
• ENHANCEMENT
• EMITTER

We present multiple-beam splitting to free space from a V groove in a two-dimensional photonic crystal waveguide (PCW) with a few additional dielectric rods at the exit of the PCW. Numerical study shows that 'one-beam-in to two-beams-out' (one-to-two, also denoted as Y-shaped), one-to-three, and one-to-five beam splittings can be easily realized over a wide bandwidth, and the split beams have remarkable properties such as symmetric energy distributions and high directional transmissions. Off-axis directional emission can also be achieved by simple displacements of the additional rods at the exit of the PCW.

• 出版日期2011-3
• 单位北京邮电大学