Yb3+-ring-doped fiber for high-energy pulse amplification
Yb3+-ring-doped fiber for high-energy pulse amplification
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.
1092-1094
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Paschotta, R.
d9e3d753-48c1-405f-b31e-e662f23a70a4
Caplen, J.E.
12c9dec4-a337-4c85-a132-0f7444f74567
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
1997
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Paschotta, R.
d9e3d753-48c1-405f-b31e-e662f23a70a4
Caplen, J.E.
12c9dec4-a337-4c85-a132-0f7444f74567
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
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), .
(doi:10.1364/OL.22.001092).
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.
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Published date: 1997
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Local EPrints ID: 77977
URI: http://eprints.soton.ac.uk/id/eprint/77977
ISSN: 0146-9592
PURE UUID: 71e337c8-32d0-4348-b620-d47ac82abce1
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:42
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Author:
J. Nilsson
Author:
R. Paschotta
Author:
J.E. Caplen
Author:
D.C. Hanna
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