Far-field analytical model for laser arrays and fitting with experimental results

Berger, J.; Fekete, D.
September 1986
Applied Physics Letters;9/15/1986, Vol. 49 Issue 11, p605
Academic Journal
Coupled laser arrays emit far-field radiation which is not well described by the grating-like formulation. An exact diffraction theory solution for the far field of coupled laser arrays is derived. The model is used to obtain excellent fit with the far-field pattern of a twin coupled laser diode operated under pulse modulation and with that of a hybrid coupled diode laser device. The fitted results exhibit the existence of a small phase difference between the coupled stripes and this difference is increased up to 12° in the hybrid device.


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