  We study numerically a system of two lasers cross-coupled optoelectronically
with a time delay where the output intensity of each laser modulates the pump
current of the other laser. We demonstrate control of chaos via variable
coupling time delay by converting the laser intensity chaos to the steady
state. We also show that wavelength chaos in an electrically tunable
distributed Bragg reflector laser diode with a feedback loop can be controlled
via variable feedback time delay.
