Fundamental mode operation of high-power InGaAs/GaAs/AlGaAs laser arrays

Authors :: Tsang, J.S.
Liou, D.C.
Tsai, K.L.
Chen, H.R.
Tsai, C.M.
Lee, C.P.
Juang, F.Y.
Source :: Journal of Applied Physics. May 1, 1993, Vol. 73 Issue 9, p4706, 3 p.
Publication Year :: 1993
Abstract: The fundamental mode operation of high-power InGaAs/GaAs/AlGaAs laser arrays was investigated. The results showed that the incorporation of absorption regions in all the laser stripes, with the exception of the central one, will result in the alteration of the arrays' field distribution and the modal gains of the array supermodes, thus producing fundamental mode operation. Threshold current was normally 40 mA while maximum output power was in excess of 150 mW.