We show that the coupling efficiency from a laser diode (LD) to an optical fiber through a ball lens can be calculated accurately using the exact solution to Maxwell’s equations for the scattering of a beam from a dielectric sphere. Our calculated results agree closely with coupling measurements from an asymmetric LD for two different ball lenses.
© 1997 Optical Society of America
Richard P. Ratowsky, Long Yang, Robert J. Deri, Kok Wai Chang, Jeffrey S. Kallman, and Gary Trott, "Laser diode to single-mode fiber ball lens coupling efficiency: full-wave calculation and measurements," Appl. Opt. 36, 3435-3438 (1997)