Compact polarization-independent quasi-adiabatic 2×2 3 dB coupler on silicon

Hung Ching Chung, Chih Hsien Chen, Yung Jr Hung, Shuo Yen Tseng

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


We demonstrate a quasi-adiabatic polarization-independent 2×2 3 dB coupler based on the silicon-on-insulator platform. Using a quasi-adiabatic taper design for the mode evolution/coupling region, the TE mode evolution is accelerated, and the TM mode coupling is achieved at a short coupling length. The measured working bandwidth is 75 nm with a compact mode evolution/coupling region of 11.7 μm.

Original languageEnglish
Pages (from-to)995-1002
Number of pages8
JournalOptics Express
Issue number2
Publication statusPublished - 2022 Jan 17

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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