Power transmission limits of different glass fibers with antireflective coating

摘要

Five different multimode optical fibers have been coated with an antireflective coating to minimize transmission losses. The transmission, the stimulated Brillouin scattering (SBS) threshold and the laser-induced damage threshold (LIDT) were determined for the fibers. The measurements are performed at 1064 nm with 24 ns pulse duration. Fiber transmissions reach up to >99.5% for optimal laser beam coupling. A damage threshold of up to 125 J/cm2 could be achieved. The fiber coatings were investigated using atomic force microscopy and scanning electron microscopy.