High energy in-band pumped erbium doped pulsed fibre laser

Lim, E.L., Alam, S.-U. and Richardson, D.J. (2012) High energy in-band pumped erbium doped pulsed fibre laser. In, Honea, Eric C. and Hendow, Sami T. (eds.) Fiber Lasers IX: Technology, Systems, and Applications. SPIE Photonics West Bellingham, US, The International Society for Optical Engineering, 82371V-[6pp]. (doi:10.1117/12.908429).


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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

Item Type: Book Section
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Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Physical Sciences and Engineering > Optoelectronics Research Centre
ePrint ID: 335868
Date Deposited: 15 Mar 2012 15:35
Last Modified: 27 Mar 2014 20:19
URI: http://eprints.soton.ac.uk/id/eprint/335868

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