Title :
Intensity modulation technique using a directly frequency-modulated semiconductor laser and an interferometer
Author :
Yabre, Gnitabouré ; Bihan, Jean Le
Author_Institution :
Ecole Nat. d´´Ingenieurs de Brest, France
fDate :
10/1/1995 12:00:00 AM
Abstract :
Harmonic distortion in semiconductor laser direct frequency modulation is described with the aid of a nonlinear differential equation for the photon density including gain damping. Curves are presented showing the fundamental, second-order harmonic and third-order harmonic FM responses. It is found that systems using a frequency-modulated laser and an interferometer would exhibit lower distortion levels than those using direct intensity modulation of the laser diode
Keywords :
electro-optical modulation; frequency modulation; harmonic distortion; laser theory; light interferometers; nonlinear differential equations; nonlinear optics; optical communication equipment; optical noise; semiconductor lasers; directly frequency-modulated semiconductor laser; distortion levels; frequency-modulated laser; gain damping; harmonic distortion; intensity modulation technique; interferometer; laser diode; nonlinear differential equation; photon density; second-order harmonic; semiconductor laser direct frequency modulation; third-order harmonic FM responses; Diode lasers; Frequency modulation; Intensity modulation; Laser noise; Laser radar; Optical distortion; Optical interferometry; Optical modulation; Optical sensors; Semiconductor lasers;
Journal_Title :
Lightwave Technology, Journal of
