A simple and compact design for a four channel polymeric wavelength division multiplexer suitable for low cost data communications application is presented. It is based on two-dimensional integrated optical slab waveguide and reflective optical elements to fold the optical path within the component. The device channel spacing is 800 GHz, measures only 4×4 mm in size, displays a polarization-dependent wavelength shift of 0.1 nm, and crosstalk levels approaching -25 dB. The demultiplexing performance of the device is tested using a wavelength tunable laser source. The transmission of all four outputs against wavelength are shown.
ASJC Scopus subject areas
- Electrical and Electronic Engineering