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Proceedings Paper

High energy in-band pumped erbium doped pulse fibre laser
Author(s): E. L. Lim; S. U. Alam; D. J. Richardson
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Paper Abstract

We demonstrate an inband, core-pumped master oscillator power amplifier (MOPA) with a maximum pulse energy of 1.56 mJ at a repetition rate of 1.25 kHz, seeded by an actively Q-switched Erbium/Ytterbium-codoped fiber (EYDF) ring laser, producing 150-ns pulses at 1562.5 nm. To maximize energy extraction whilst minimizing signal saturation effects, a 40μm Er3+-doped larger mode area (LMA) fiber was used as the gain medium. A 1535 nm single mode fiber laser was used for in-band pumping of the LMA fiber. The output beam quality (M2) was measured to be ~1.6. This is to the best of our knowledge is the highest reported pulse energy for a pulse fiber laser at 1.5 μm with M2~1.6.

Paper Details

Date Published: 16 February 2012
PDF: 6 pages
Proc. SPIE 8237, Fiber Lasers IX: Technology, Systems, and Applications, 82371V (16 February 2012); doi: 10.1117/12.908429
Show Author Affiliations
E. L. Lim, Optoelectronics Research Ctr., Univ. of Southampton (United Kingdom)
S. U. Alam, Optoelectronics Research Ctr., Univ. of Southampton (United Kingdom)
D. J. Richardson, Optoelectronics Research Ctr., Univ. of Southampton (United Kingdom)


Published in SPIE Proceedings Vol. 8237:
Fiber Lasers IX: Technology, Systems, and Applications
Eric C. Honea; Sami T. Hendow, Editor(s)

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