Coherent Large Mode Area (LMA) passive double clad fibers are ideal for high power fiber lasers and amplifiers used in military, industrial, and medical applications. These fibers feature a 20 micron diameter core and 400 micron diameter clad size with a low NA (0.065) core. They are precision matched to their active counterpart, LMA-YDF-20/400-HP-M, to ensure excellent splice compatability and low loss. As with all Coherent standard Large Mode Area (LMA) fibers, these fibers are proof-tested to 100 kpsi, an industry requirement for long term reliability. They utilize the latest fiber design to ensure excellent preservation of beam quality. The new NuCOATFA-HP high performance coating technology extends the operating life at higher power levels demanded by today’s industrial fiber laser applications.

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