Title :
Multichannel intermodulation distortion in high-speed GaInAsP lasers
Author :
Iannone, P. ; Darcie, T.E.
Author_Institution :
AT&T Bell Laboratories, Crawford Hill Laboratory, Holmdel, USA
Abstract :
We present an experimental study of intermodulation distortion (IMD) in high-speed, long-wavelength GaInAsP lasers modulated up to 8 GHz. It is found that three-tone distortion products are the dominant contribution to IMD interference when the number of subcarriers is large. These distortion data are used with a simple theory to predict accurately the measured signal/noise ratio for each channel of a multichannel subcarrier system.
Keywords :
III-V semiconductors; gallium arsenide; indium compounds; intermodulation; optical communication equipment; optical modulation; semiconductor junction lasers; 8 GHz; GaInAsP; IMD; experimental study; intermodulation distortion; long-wavelength GaInAsP lasers; multichannel IMD; multichannel subcarrier system; number of subcarriers; signal/noise ratio; three-tone distortion products;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870939
