Title :
Phase-shift modulation technique for the linerisation of analogue optical transmitters
Author :
Straus, Jonathan ; SpringThorpe, A.J. ; Szentesi, O.I.
Author_Institution :
Bell-Northern Research Ltd., Ottawa, Canada
Abstract :
A phase-shift modulation technique is described for the linearisation of light sources in fibre-optic transmission systems. A 25 dB reduction in the 2nd-harmonic distortion has been achieved in specially fabricated GaAlAs double-heterostructure light-emitting dioded (l.e.d.s) compared with the distortion levels typical of conventional l.e.d.s.
Keywords :
light emitting diodes; optical communication equipment; optical fibres; optical modulation; phase modulation; GaAlAs DH LEDs; analogue optical transmitters; fibre optic transmission systems; linearisation; phase shift modulation technique; second harmonic distortion;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19770106
