InP-based 1.3/1.55 μm wavelength demultiplexer with multimode interference and chirped grating
- Cite this article as:
- Lin, YJ. & Lee, SL. Optical and Quantum Electronics (2002) 34: 1201. doi:10.1023/A:1021373005100
- 67 Downloads
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.