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Proceedings Paper

CW and pulsed performance of Tm-doped photonic crystal fiber lasers
Author(s): Pankaj Kadwani; R. Andrew Sims; Lasse Leick; Jes Broeng; Lawrence Shah; Martin Richardson
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Paper Abstract

We demonstrate single-mode, highly polarized output from a thulium-doped photonic crystal fiber (PCF) with 50 μm core diameter and an ultra-large mode area >1000 μm2. To our knowledge, this is the largest mode area of any flexible PCF and is capable of enabling the generation of high peak powers. In a Q-switched oscillator configuration, this fiber produces peak powers as high as 8.9 kW with 435 μJ, 49 ns pulses, >15 dB polarization extinction ratio and quasi diffraction-limited beam quality. The pulse energy was scaled to >1 mJ in amplifier configuration.

Paper Details

Date Published: 7 May 2012
PDF: 6 pages
Proc. SPIE 8381, Laser Technology for Defense and Security VIII, 83811F (7 May 2012); doi: 10.1117/12.925408
Show Author Affiliations
Pankaj Kadwani, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
R. Andrew Sims, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Lasse Leick, NKT Photonics A/S (Denmark)
Jes Broeng, NKT Photonics A/S (Denmark)
Lawrence Shah, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Martin Richardson, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 8381:
Laser Technology for Defense and Security VIII
Mark Dubinskii; Stephen G. Post, Editor(s)

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