Title :
High-isolation demultiplexing in bend-tuned twin-core fiber
Author :
Arkwright, John W. ; Hewlett, Simon J. ; Atkins, Graham R. ; Wu, Bin
Author_Institution :
Siemens (Australia) Ltd., Vic., Australia
fDate :
7/1/1996 12:00:00 AM
Abstract :
By applying a cantilever bend to a twin-core optical fiber wavelength division demultiplexer, isolations of >30 dB have been achieved between channels at 1.33-1.54 μm. These bend-tuned TCF´s exhibit ⩾20 dB isolation over a bandwidth of 32 and 21 nm in the two wavelength windows, respectively. This is significantly better than that typically offered by commercially available, single-stage, tapered coupler demultiplexers. The bend-tuning mechanism is demonstrated experimentally and described theoretically using a coupled local-mode analysis
Keywords :
bending; coupled mode analysis; demultiplexing equipment; optical communication equipment; optical fibre couplers; optical fibres; optical isolators; tuning; wavelength division multiplexing; 1.33 to 1.54 mum; bend-tuned twin-core fiber; cantilever bend; coupled local-mode analysis; high-isolation demultiplexing; isolations; single-stage tapered coupler demultiplexers; twin-core optical fiber wavelength division demultiplexer; wavelength windows; Degradation; Demultiplexing; Frequency conversion; Optical detectors; Optical device fabrication; Optical refraction; Propagation constant; Shape;
Journal_Title :
Lightwave Technology, Journal of
