A fiber-pigtailed assembly for an optical detector with low back reflection and minimal polarization-dependent responsivity has a detector surface mounted adjacent a beveled end of a fiber pigtail such that the detector surface is tilted and rotated with respect to the beveled end of the fiber pigtail....http://www.google.fr/patents/US6948859?utm_source=gb-gplus-shareBrevet US6948859 - Fiber-pigtailed assembly
