Pigtail style collimator for 1550nm with an f=2mm aspheric lens in a 4mm OD housing with -40dB return loss, with a 0.5 meter long, 900 micron OD jacketed, 8/125 PM fiber, with no connector. The output beam diameter will be 0.44mm. The collimator is mounted in a (SP) 15mm diameter non-removable flange, with a 0.43" diameter hole pattern for mounting and aligning. O-ring, mounting screws and a ball driver are also included.
