Abstract
The power imbalance between different waveguide outputs is compensated by manipulating the dispersion of the guided propagation in the multimode interference (MMI) region. This is attainable using a tapered region at the beginning of the MMI region that has been verified through simulation and experiment. From this, the fabrication tolerance for the diameters of holes in a tapered photonic crystal waveguide (PhCW) splitter is relaxed up to a range of at least . The output power is well-balanced to within . The effective bandwidth of the splitters shifts only around , for a reduction of in the diameter of the PhCW holes. The optimized component is an outstanding ultracompact splitter for the photonic integrated circuit (PIC).
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Min Zhang, Radu Malureanu, Asger Christian Krüger, and Martin Kristensen
Opt. Express 18(14) 14944-14949 (2010)
Tianbao Yu, Nianhua Liu, Qinghua Liao, Dongying Zhang, and Jianyi Yang
Appl. Opt. 51(10) 1581-1585 (2012)
L. H. Frandsen, P. I. Borel, Y. X. Zhuang, A. Harpøth, M. Thorhauge, M. Kristensen, W. Bogaerts, P. Dumon, R. Baets, V. Wiaux, J. Wouters, and S. Beckx
Opt. Lett. 29(14) 1623-1625 (2004)