Title :
Observation of WDM crosstalk in passive semiconductor waveguides
Author :
Van Thourhout, D. ; Doerr, C.R. ; Joyner, C.H. ; Pleumeekers, J.L.
Author_Institution :
Lucent Technol. Bell Labs., Holmdel, NJ, USA
fDate :
5/1/2001 12:00:00 AM
Abstract :
We show that passive InP-InGaAsP waveguides exhibit high nonlinear loss due to the highly energetic carriers generated by two-photon absorption. We have further demonstrated, for the first time, that due to this effect, severe crosstalk occurs between wavelength channels when they are transmitted through a semiconductor waveguide operated in the transparency region, at power levels used in typical wavelength-division-multiplexed (WDM) systems. Some solutions are proposed.
Keywords :
III-V semiconductors; gallium arsenide; gallium compounds; indium compounds; optical communication equipment; optical crosstalk; optical waveguides; wavelength division multiplexing; InP-InGaAsP; WDM crosstalk; WDM systems; high nonlinear loss; highly energetic carriers; passive InP-InGaAsP waveguides; passive semiconductor waveguides; power levels; semiconductor waveguide; transparency region; two-photon absorption; typical wavelength-division-multiplexed systems; wavelength channels; Absorption; Nonlinear optics; Optical crosstalk; Optical distortion; Optical waveguides; Photonic band gap; Propagation losses; Semiconductor waveguides; Slabs; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
