We experimentally study chaos synchronization in unidirectionally coupled vertical-cavity surface-emitting semiconductor lasers (VCSELs) with polarization-preserved and polarization-selected optical injection. The measurements show, in agreement with theoretical predictions, that the maximum cross coefficient of 0.884 obtained with polarization-preserved optical injection is significantly higher than the maximum cross coefficient of 0.724 obtained with polarization-selected optical injection.
© 2008 Optical Society of America
Original Manuscript: December 14, 2007
Revised Manuscript: January 31, 2008
Manuscript Accepted: February 5, 2008
Published: March 12, 2008
Yanhua Hong, Min Won Lee, Jon Paul, Paul S. Spencer, and K. Alan Shore, "Enhanced chaos synchronization in unidirectionally coupled vertical-cavity surface-emitting semiconductor lasers with polarization-preserved injection," Opt. Lett. 33, 587-589 (2008)