Yb3+-ring-doped fiber for high-energy pulse amplification


Nilsson, J., Paschotta, R., Caplen, J.E. and Hanna, D.C. (1997) Yb3+-ring-doped fiber for high-energy pulse amplification. Optics Letters, 22, (14), 1092-1094. (doi:10.1364/OL.22.001092).

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Description/Abstract

We report what is to our knowledge the first demonstration of pulse amplification in a cw-pumped fiber in which the doped gain medium has a ring shape surrounding a single-mode core. For a given pump power, ring doping reduces the gain and hence the power lost to amplified spontaneous emission. Thereby, a significantly larger amount of energy can be stored in the amplifier. Using an Yb3+-doped fiber pumped by 540 mW of power at 1000 nm, we measured 69 mJ of extracted pulse energy at 1047 nm, the highest value reported to date from a single-mode Yb3+-doped fiber. We predict that a fiber cladding pumped by a diode bar can produce pulse energies in excess of 1 mJ

Item Type: Article
ISSNs: 0146-9592 (print)
1539-4794 (electronic)
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Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 77977
Date Deposited: 11 Mar 2010
Last Modified: 27 Mar 2014 18:58
URI: http://eprints.soton.ac.uk/id/eprint/77977

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