CW-lasing and amplification in Tm3+-doped photonic crystal fiber rod

Christian Gaida, Pankaj Kadwani, Lasse Leick, Jes Broeng, Lawrence Shah, Martin Richardson

Research output: Contribution to journalJournal articleResearchpeer-review


We report lasing and amplification in a rod type thulium-doped photonic crystal fiber with 80 am core diameter. The rod is pumped with a 793 nm laser diode and produces more than 20 W output power at a beam quality M2 <1.3. The laser/amplifier has a slope efficiency of 27.8%/20.1% relative to absorbed pump power with a lasing threshold at 28.6 W. The output wavelength in the lasing configuration can be tuned over 180 nm from 1810-1990 nm.
Original languageEnglish
JournalOptics Letters
Issue number21
Pages (from-to)4513-4515
Publication statusPublished - 2012
Externally publishedYes


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