Power collection of a laser diode elliptical beam by a decentered circular aperture

摘要

The elliptical beam of a laser diode is collected by a circular aperture decentered with respect to the beam. The fractional optical power collected is calculated and measured as a function of the decentered distance, beam size. and aperture size. The calculation results agree well with the measurement results. An application example of the results is described. # 1997 Optical Society of America