Pigtail style collimator for 1064nm with an f=2.13mm Grin lens in a 2.5mm OD housing, with -40dB return loss, with a 1 meter long, 900µm OD cabled, 6/125µm singlemode fiber, terminated with an angled FC/APC connector. The predicted collimated beam diameter will be around 0.43mm at the 1/e^2 level.
