High-power 980-nm pump laser modules for erbium-doped fiber amplifiers

Martin Achtenhagen, Mark Mc Elhinney, Steve Nolan, Amos Hardy

Research output: Contribution to journalArticlepeer-review


High-power fiber-coupled pump modules with an emission wavelength of 980 nm and output powers in excess of 200 mW, as measured at the fiber end, have been fabricated. Laser-to-fiber coupling efficiencies in excess of 77% are observed to be in excellent agreement with a mathematical model. Also, the output power stability of these modules has been monitored during severe temperature cycling, and the relative power variation was less than 4% for all the tested modules.

Original languageEnglish
Pages (from-to)5765-5767
Number of pages3
JournalApplied Optics
Issue number27
StatePublished - 20 Sep 1999


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