Title :
Highly asymmetrical vertical coupler wavelength filter in InGaAlAs/InP
Author :
Han, S.-K. ; Ramaswamy, R.V. ; Tavlykaev, R.F.
Author_Institution :
Dept. of Electr. Eng., Florida Univ., Gainesville, FL, USA
fDate :
1/5/1995 12:00:00 AM
Abstract :
For the first time a narrowband wavelength filter in InGaAlAs/InP is reported. A highly asymmetrical, vertically-coupled directional coupler operating near the band edge is formed by a narrow ridge and a wide strip-loaded waveguide. Operation at a centre wavelength of ~1.5 μm with a bandwidth of 18 Å and transfer efficiency ~50-70% has been achieved
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; indium compounds; integrated optics; optical directional couplers; optical waveguide filters; 1.5 micron; 50 to 70 percent; InGaAlAs-InP; asymmetrical vertical coupler wavelength filter; bandwidth; directional coupler; narrowband wavelength filter; ridge waveguide; strip-loaded waveguide; transfer efficiency;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950042
