1m -0/+0.1m long, Master reference patchcord, 3 mm OD jacketed (blue color), 6/125ยต 980nm PM fiber patchcord, terminated on one end with a super FC/PC connector on the other with an angled FC/APC connector, which are pre-aligned and locked on the slow axis. ER=330dB minimum with +/-1.5degree polarization angle tolerance (Optically) and while there is no external stress is applied onto fiber.
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