Dependence of central-lobe output power on fill factor of an in-phase laser array
- 2 July 1987
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 23 (14) , 754-755
- https://doi.org/10.1049/el:19870534
Abstract
In a multiple-emitter diode laser array, coupled in-phase, a substantial amount of the output power is radiated in off-axis lobes. An approximate calculation of the central (0°) lobe output power of an in-phase array as a function of emitter width and array spacing is presented. The results for an array of Gaussian emitters indicate that a near-field fill factor of 70% is required to obtain 95% of the output power in the central lobe.Keywords
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