Binaryhyphen;optics miniature Talbot cavities for laser beam addition

摘要

A miniature external cavity has been fabricated from a single 4.5 mm substrate for coherent beam addition of a linear AlGaAs laser array. Binaryhyphen;optics elements are fabricated on the front surface for laser beam collimation and onto the back surface for lateral mode selection. Nearhyphen;diffractionhyphen;limited performance has been observed with up to 80percnt; of the farhyphen;field power contained in the central lobe.