Title :
Simultaneous CW operation of shared angular dispersive element WDM lasers
Author :
Doerr, C.R. ; Monnard, R. ; Joyner, C.H. ; Stulz, L.W.
Author_Institution :
Lucent Technol., AT&T Bell Labs., Holmdel, NJ, USA
fDate :
4/1/1998 12:00:00 AM
Abstract :
We show that when more than two channels operate continuous-wave (CW) simultaneously in shared dispersive element wavelength-division-multiplexing (WDM) lasers, /spl chi//sup (3)/ in the passive shared waveguide can cause spontaneous fluctuations in frequency and power. We propose the simple cure of making the shared waveguide extremely short. We obtain a value for the nonlinear-index coefficient of our InGaAsP waveguides of +0.9/spl times/10/sup -12/ cm/sup 2//W.
Keywords :
III-V semiconductors; fluctuations; gallium arsenide; gallium compounds; indium compounds; nonlinear optics; optical dispersion; optical transmitters; optical waveguides; semiconductor lasers; waveguide lasers; wavelength division multiplexing; /spl chi//sup (3)/; InGaAsP; InGaAsP waveguides; continuous-wave; nonlinear-index coefficient; passive shared waveguide; semiconductor laser waveguide lasers; shared angular dispersive element WDM lasers; shared dispersive element wavelength-division-multiplexing lasers; simultaneous CW operation; spontaneous fluctuations; Arrayed waveguide gratings; Dispersion; Magnetic flux leakage; Optical amplifiers; Optical waveguides; Semiconductor lasers; Semiconductor optical amplifiers; Semiconductor waveguides; Waveguide lasers; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
