Title :
Transmission characteristics of arrayed waveguide N×N wavelength multiplexer
Author :
Takahashi, Hiroshi ; Oda, Kazuhiro ; Toba, Hirma ; Inoue, Yasuyuki
Author_Institution :
Lightwave Commun. Lab., NTT Transmission Syst. Labs., Kanagawa, Japan
fDate :
3/1/1995 12:00:00 AM
Abstract :
To realize practical wavelength division multiplexing (WDM) systems, a high-performance N×N wavelength multiplexer is introduced that is based on an arrayed-waveguide grating. Its transmission characteristics are theoretically derived and experimentally confirmed. A prototype is constructed using the previously proposed techniques that attain low insertion loss and polarization independent operation. It has 16 channels (N=16) with a spacing of 0.8 mn, or 100 GHz, in the 1.55-μm band. Frequency relation between input and output ports, free spectral range, and passband width are determined. A demonstration of IM-DD pulse transmission shows that there is no degradation of bit error rate resulting from the finite passband width and crosstalk of the multiplexer. It is confirmed that the multiplexer can realize highly reliable N-channel WDM and WDM-based N×N interconnect optical networks
Keywords :
diffraction gratings; intermodulation distortion; light polarisation; multiplexing equipment; optical crosstalk; optical fibre networks; optical losses; optical planar waveguides; wavelength division multiplexing; 1.55 mum; IM-DD pulse transmission; N×N wavelength multiplexer; WDM systems; WDM-based N×N interconnect optical networks; arrayed waveguide; arrayed-waveguide grating; bit error rate; crosstalk; finite passband width; free spectral range; highly reliable N-channel WDM; low insertion loss; passband width; polarization independent operation; transmission characteristics; Arrayed waveguide gratings; Frequency; Insertion loss; Optical pulses; Optical waveguides; Passband; Polarization; Prototypes; Space vector pulse width modulation; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
