Systematic design of novel wide-angle low-loss symmetric y-junction waveguides

Jui Ming Hsu, Ching Ting Lee

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


To construct a low-loss and wide-branching-angle symmetric Y-junction waveguide, a novel structure is proposed. The structure consists of a pair of microprisms for precompensation and a microprism for phase-front acceleration. The structure of the Y-junction and the associated refractive indexes of microprisms are systematically derived. The simulated results using the fast Fourier transformation beam propagation method (FFT-BPM) demonstrate the performances of the proposed structure. The normalized transmitted power is more than 95% even though the branching angle is up to 20°.

Original languageEnglish
Pages (from-to)673-679
Number of pages7
JournalIEEE Journal of Quantum Electronics
Issue number4
Publication statusPublished - 1998 Apr

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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