Dual laser diode array emission coherently summed in an external cavity

Hemmati, Hamid; Abshire, James B.
March 1987
Applied Physics Letters;3/16/1987, Vol. 50 Issue 11, p638
Academic Journal
The output power from two ten-element laser diodes arrays has been efficiently summed in an external cavity to obtain a coherent, continuous wave beam. In this technique, laser emission from each front surface antireflection coated diode array is stimulated by injection of emission from a second such array. This method was also applied to single-element diode lasers. The output beam characteristics such as spectral distribution, far-field and near-field beam patterns, and overall efficiency have been measured.


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