Optical and Quantum Electronics

, Volume 34, Issue 12, pp 1201–1212

InP-based 1.3/1.55 μm wavelength demultiplexer with multimode interference and chirped grating

  • Y.-J. Lin
  • S.-L. Lee

DOI: 10.1023/A:1021373005100

Cite this article as:
Lin, YJ. & Lee, SL. Optical and Quantum Electronics (2002) 34: 1201. doi:10.1023/A:1021373005100


We propose a novel 1.3/1.55 μm wavelength demultiplexer for integration with lasers and detectors on the InP material system. A chirp grating is placed inside a multimode interference (MMI) structure to shorten the device length and increase wavelength tolerance. The simulation using the bi-directional beam propagation method proves that the demultiplexer can have very low insertion loss and high isolation ratio. The approach of grating fabrication is also described.

chirp gratingmultimode interferencephotonic integrationwavelength demultiplexerwavelength division multiplexing

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Y.-J. Lin
    • 1
  • S.-L. Lee
    • 1
  1. 1.Department of Electronic EngineeringNational Taiwan University of Science and TechnologyTaipeiTaiwan