Document Detail

Pulsed operation of a resonantly pumped, linearly polarised, large mode area holmium-doped fibre amplifier.
MedLine Citation:
PMID:  24664067     Owner:  NLM     Status:  In-Data-Review    
We present the design of a polarisation maintaining, resonantly and cladding pumped, large mode area holmium-doped fibre. We describe the operation of this fibre in a pulsed amplifier configuration. The amplifier produced pulses with energy of 2.25 mJ and duration of 20 ns at a repetition rate of 20 kHz and average power of 45 W. The holmium-doped fibre provided >10 dB of gain at 2.09 µm and the polarisation extinction ratio was >11.5 dB. The beam quality of the output (M<sup>2</sup>) was 1.6. To the best of our knowledge this is the highest pulse energy achieved from any singly holmium-doped fibre by an order of magnitude.
Alexander Hemming; Jim Richards; Nikita Simakov; Alan Davidson; Neil Carmody; John Haub; Adrian Carter
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics express     Volume:  22     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2014 Mar 
Date Detail:
Created Date:  2014-03-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  7186-93     Citation Subset:  IM    
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