摘要A non-equiphase Gaussian model is proposed to simulate the far-field distributions of double-heterostructure diode lasers, which is physically reasonable because the phase along the junction of diode lasers could not be equal. A comparison of the numerically calculated intensity profiles in using the equal phase and non-equiphase models with the experimentally measured intensity profiles given by Nemoto shows that in the x direction perpendicular to the junction plane, the non-equiphase Gaussian model is as good as the equal phase Gaussian model. Specifically, in the y direction parallel to the junction plane and the 45°direction with respect to the x axis in the xoy plane, the numerical results by using the non-equiphase model are in good agreement with the experimental data, as the propagation distance is larger than a certain value.
Abstract：A non-equiphase Gaussian model is proposed to simulate the far-field distributions of double-heterostructure diode lasers, which is physically reasonable because the phase along the junction of diode lasers could not be equal. A comparison of the numerically calculated intensity profiles in using the equal phase and non-equiphase models with the experimentally measured intensity profiles given by Nemoto shows that in the x direction perpendicular to the junction plane, the non-equiphase Gaussian model is as good as the equal phase Gaussian model. Specifically, in the y direction parallel to the junction plane and the 45°direction with respect to the x axis in the xoy plane, the numerical results by using the non-equiphase model are in good agreement with the experimental data, as the propagation distance is larger than a certain value.
[1] Naqwi A and Durst F 1990 Appl. Opt. 29 1780 [2] Zeng X and Naqwi A 1993 Appl Opt. 32 4491 [3] Li Y and Katz J 1996 Appl. Opt. 35 1442 [4] Zeng X, Feng Z and An Y 2004 Appl. Opt. 43 5168 [5] Li Y 1992 Appl. Opt. 31 3392 [6] Naqwi A 1992 Appl. Opt. 31 3394 [7] Dong H Z, Shi S X and Chen S M 2006 Appl. Opt. 45 5160 [8] Dong H Z, Shi S X, Li J L and Chen S M 2006 Acta Opt.Sin. 26 851 [9] Nemoto S 1994 Appl Opt. 33 6387 [10] Gao Z H and L\"u B D 2006 Chin. Phys. Lett. 23 106 [11] Zou Q H and L\"u B D 2006 J. Opt. A: Pure Appl. Opt. 8531
2007, Vol. 24 
