Title :
Compact planar 980/1550-nm wavelength multi/demultiplexer based on multimode interference
Author :
Paiam, M.R. ; Janz, C.F. ; MacDonald, R.I. ; Broughton, J.N.
Author_Institution :
Telecommun. Res. Lab., Edmonton, Alta., Canada
Abstract :
A compact integrated 980/1550-nm wavelength multi/demultiplexing coupler based on multimode interference effects is demonstrated. The device is useful for integration with rare-earth doped waveguide amplifiers and lasers. It is shown that the device performance can be optimized with an appropriate choice of the coupler width. The coupler is fabricated in a SiO2-SiON deeply-etched rib waveguide system. Theoretical and experimental results for the demultiplexer configuration are presented. At an optimum coupler length of 458 μm, contrast of about 18 dB, and on-chip insertion loss of 0.5 dB at both wavelengths are achieved.
Keywords :
demultiplexing equipment; etching; integrated optics; light interference; multiplexing equipment; optical communication equipment; optical couplers; optical fabrication; optical losses; optical waveguides; rib waveguides; silicon compounds; wavelength division multiplexing; 0.5 dB; 1550 nm; 458 mum; 980 nm; SiO/sub 2/-SiON; SiO/sub 2/-SiON deeply-etched rib waveguide system; compact planar wavelength demultiplexer; coupler width; demultiplexer configuration; demultiplexing coupler; device performance; multimode interference; on-chip insertion loss; optimum coupler length; rare-earth doped lasers; rare-earth doped waveguide amplifiers; wavelength multiplexer; Insertion loss; Interference; Optical amplifiers; Optical device fabrication; Optical losses; Optical pumping; Optical refraction; Optical variables control; Optical waveguides; Waveguide lasers;
Journal_Title :
Photonics Technology Letters, IEEE
