BEAM CONE ANALYSIS FOR THE BEAMS NON-PARAXIALLY INPUT TO DIELECTRIC BOUNDARIES

Directional variation of the acceptance angle of angled-endface fibers is studied by the use of a simple vectorial method. By the same metho d, beam cones are studied in a photodiode substrate after the beam is input with inclination, as in the case of an InP-based photodiode moun ted on a silicon v-groove with an optical fiber. The same method can a lso be applied to the determination of beam cone shapes in prisms.