Apparatus for providing optical radiation

摘要

Apparatus for providing optical radiation (1), comprising a pump array (8), a first pump combiner (1), an optical switch (233), a transmission cable (232), and a plurality of waveguides (3), wherein:
€¢ the pump array (8) is configured to provide pump radiation (7);
€¢ the pump radiation (7) is coupled into the waveguide (3) via the first pump combiner (1);
€¢ each waveguide (3) comprises a gain medium (5) which emits the optical radiation (10) when it is pumped by the pump radiation (7);
the apparatus being characterised in that:
€¢ the optical switch (233) is configured to route the pump radiation (7) to different ones of the waveguides (3); and
€¢ the transmission cable (232) is configured to transmit the pump radiation (7).