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Above-threshold analysis of second-order circular-grating DFB lasers

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3 Author(s)
Shams-Zadeh-Amiri, A.M. ; Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada ; Xun Li ; Wei-Ping Huan

The behavior of second-order circular-grating DFB lasers in the above-threshold regime are analyzed. The formulation uses the standing wave method for treating lasers with second-order gratings. The effects of spontaneous emission and the variation of carrier and photon densities in the radial direction are included in a self-consistent fashion in the model. In particular, we examine the output power emitted from the surface of the laser, the near-field, and the far-field pattern of the laser as a function of the injected current.

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Quantum Electronics, IEEE Journal of  (Volume:36 ,  Issue: 3 )