Abstract
Crossed-polarization reinjection (XPR) is a form of incoherent optical feedback where only one of the linear polarization components of the light (TE, say) is fed back onto the laser after being converted to the orthogonal linear polarization component (TM, say), thus there are no direct coherent effects among the two waves which interact only through cross-saturation of the carrier density in the active region. XPR in edge-emitting lasers induces complex dynamical behaviors1; in appropriate working conditions it leads to square-wave switching of the polarization-resolved laser output2.
© 2007 IEEE
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