Coherent Corp. announced a first-to-market single-mode (SM), polarization-maintaining (PM) erbium-ytterbium co-doped optical fiber for high-power 1550 nm, narrow linewidth, and single-frequency amplifiers. Coherent is now the first company to support pure SM, PM optical fibers for >20 W average power capabilities.

The key Coherent product innovation is merging exceptional high-power performance and superior beam quality to achieve unique performance characteristics previously unavailable. Additionally, it incorporates a design that emphasizes manufacturability and lightweight construction, featuring a 130 µm geometry made possible by a proprietary Coherent manufacturing technology. To ensure customers achieve the best beam quality and coupling efficiency, Coherent offers precision-matched passive fibers that may be used in manufacturing passive optical components or for beam delivery.

Coherent offers a diverse range of complimentary erbium-ytterbium co-doped fibers, which are customized with various compositions, numerical apertures, and large-mode fields to suit virtually any application. The PM-EYDF-10P/130-XPH and matching passive optical fiber products are available immediately.