Variable splitting ratio 2×2 MMI couplers using multimode waveguide holograms

Shuo Yen Tseng, Canek Fuentes-Hernandez, Daniel Owens, Bernard Kippelen

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)


Variable power splitting ratio 2×2 MMI couplers using multi-mode waveguide holograms are analyzed. Theoretical analysis shows that variable splitting ratios can be obtained with surface relief holograms on MMI couplers with fixed dimensions. Devices with paired-imaging lengths are designed on a silicon-on-insulator (SOI) platform. Beam propagation simulations are used to verify a matrix theory analysis and to investigate proposed device performance. Fabrication tolerance of the proposed device is also analyzed.

Original languageEnglish
Pages (from-to)9015-9021
Number of pages7
JournalOptics Express
Issue number14
Publication statusPublished - 2007 Jul 9

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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