Q-switched thulium-doped photonic crystal fiber laser

Pankaj Kadwani, Norbert Modsching, R. Andrew Sims, Lawrence Shah, Martin Richardson, Norbert Modsching, Lasse Leick, Jes Broeng

Research output: Contribution to journalJournal articleResearchpeer-review


We report a novel, Tm-doped photonic crystal fiber (PCF) actively Q-switched oscillator that provides ̃8.9 kW peak power with 435 μJ, 49 ns pulses at 10 kHz repetition rate at 2 μm wavelength. This fiber has a mode-field area >1000 μm2, the largest of any flexible PCF providing diffraction-limited beam quality to the best of our knowledge. As an application, the oscillator is used as pump to generate >350 nm broadening in ̃50 m of SMF-28 fiber.
Original languageEnglish
JournalOptics Letters
Issue number10
Pages (from-to)1664-1666
Publication statusPublished - 2012
Externally publishedYes

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