Title :
High index microlenses for GaAlAs laser-fibre coupling
Author :
d´Auria, L. ; Combemale, Y. ; Moronvalle, C. ; Jacques, Albert
Author_Institution :
Thomson-CSF, Laboratoire Central de Recherches, Orsay, France
Abstract :
The best compromise between coupling efficiency, accuracy of positioning and reproducibility has been obtained for a high index hemispherical lens melted on the tip of an intermediate fibre between the GaAlAs laser and the transmission fibre. The letter describes the lens fabrication technique and gives various experimental results of coupling efficiencies and mechanical tolerances.
Keywords :
lenses; optical couplers; optical fibres; GaAlAs laser; coupling efficiency; graded index optical fibres; high index hemispherical lens; mechanical tolerances; semiconductor junction lasers; transmission fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800231
