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Highly nondegenerate four-wave mixing in uniform and λ/4-shifted DFB lasers

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3 Author(s)
Chi, J.W.D. ; Lab. RESO, Ecole Nat. d''Ingenieurs de Brest, France ; Shore, K.A. ; Le Bihan, J.

A theoretical investigation of highly nondegenerate four-wave mixing (HNDFWM) in uniform and quarter-waveshifted distributed feedback (DFB) lasers in the weak injection regime has been performed using a numerical analysis of the coupled-wave equations. The effects of carrier spatial and spectral hole burning, carrier heating, and longitudinally variable pump field above the laser threshold are included. Pump-probe detunings up to 1.5 THz are investigated. It is found that, for small and moderate DFB coupling coefficients, the conjugate wave can be generated in a bandwidth of ~1 THz with an efficiency of -20 dB or more, compared to the injected probe power

Published in:

Quantum Electronics, IEEE Journal of  (Volume:33 ,  Issue: 11 )