2+1x1 MM Power Combiner Active PM signal feedthrough

A multimode combiner in a 2+1x1 configuration, with an active PM signal feed-through fiber and an active PM dual clad output fiber. Supported pump input wavelengths range from 780 – 1000 nm while signal input wavelengths range from 1530 – 1565 nm or 1030 – 1090 nm. G&H proprietary manufacturing techniques allow the precise fusion of multimode pump fibers to an active PM signal feed-through fiber and an active PM dual clad output fiber, providing high coupling efficiency over a wide pump wavelength range.

Inclusion of the splice between the passive and active signal fiber within the combiner housing removes the need for an external splice reducing potential back-scatter to the pump sources. G&H power combiners can be fabricated from a range of industry standard fibers allowing ease of splicing to commercially available laser diodes, signal and gain fibers. Custom variants using non-standard fibers are available on request.

All specifications are for operation at room temperature.
¹ MM Transmission efficiencies based on typical system mode fill conditions and 0.5 m pigtails. Measurements performed outside of active fiber absorption band, typically reported at 1120 nm.
² Signal (feed-through) transmission efficiency and PER measured outside of active fiber absorption band, typically reported at 1310 nm.