| 摘要 |
<p>The present invention relates to a method for limiting coupling losses between a monomode optical fibre (2) of spot diameter W0 and an optical system (1) of spot diameter W'0 which is different from W0, characterised in that a section (4) of multimode fibre, of length between 0.1 and 5 mm, having the same external cladding diameter as the said monomode fibre, a spot diameter substantially equal to W'0 and an index difference DELTA n between 5 x 10<-3> and 50 x 10<-3>, is fusion bonded onto the end of the said monomode fibre, the fusion bonding creating an adiabatic cone in the junction zone of the cores. <IMAGE></p> |
