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Compact, high-pulse-energy, high-power, picosecond master oscillator power amplifier

Compact, high-pulse-energy, high-power, picosecond master oscillator power amplifier
Compact, high-pulse-energy, high-power, picosecond master oscillator power amplifier
We report a compact, stable, gain-switched-diode-seeded master oscillator power amplifier (MOPA), employing direct amplification via conventional Yb3+-doped fibers, to generate picosecond pulses with energy of 17.7µJ and 97W average output power (excluding amplified spontaneous emission) at 5.47MHz repetition frequency in a diffraction-limited and single-polarization beam. A maximum peak power of 197kW is demonstrated. Such a high-energy, high-power, MHz, picosecond MOPA is of great interest for high-throughput material processing. With 13.8µJ pulse energy confined in the 0.87nm 3dB spectral bandwidth, this MOPA is also a promising source for nonlinear frequency conversion to generate high-energy pulses in other spectral regions. We have explored the pulse energy scaling until the stimulated Raman Scattering (SRS) becomes significant (i.e. spectral peak intensity exceeds 1% of that of the signal).
1094-4087
21938-21943
Chan, Ho-Yin
1fc4176b-1947-4252-b019-d63e66af6d32
Alam, Shaif-ul
2b6bdbe5-ddcc-4a88-9057-299360b93435
Xu, Lin
b887cecd-d21e-49f4-9b45-6909a7369e84
Bateman, James
05b8f150-3d00-49f6-bf35-3d535b773b53
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Shepherd, David P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Chan, Ho-Yin
1fc4176b-1947-4252-b019-d63e66af6d32
Alam, Shaif-ul
2b6bdbe5-ddcc-4a88-9057-299360b93435
Xu, Lin
b887cecd-d21e-49f4-9b45-6909a7369e84
Bateman, James
05b8f150-3d00-49f6-bf35-3d535b773b53
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Shepherd, David P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead

Chan, Ho-Yin, Alam, Shaif-ul, Xu, Lin, Bateman, James, Richardson, David J. and Shepherd, David P. (2014) Compact, high-pulse-energy, high-power, picosecond master oscillator power amplifier. Optics Express, 22 (18), 21938-21943. (doi:10.1364/OE.22.021938).

Record type: Article

Abstract

We report a compact, stable, gain-switched-diode-seeded master oscillator power amplifier (MOPA), employing direct amplification via conventional Yb3+-doped fibers, to generate picosecond pulses with energy of 17.7µJ and 97W average output power (excluding amplified spontaneous emission) at 5.47MHz repetition frequency in a diffraction-limited and single-polarization beam. A maximum peak power of 197kW is demonstrated. Such a high-energy, high-power, MHz, picosecond MOPA is of great interest for high-throughput material processing. With 13.8µJ pulse energy confined in the 0.87nm 3dB spectral bandwidth, this MOPA is also a promising source for nonlinear frequency conversion to generate high-energy pulses in other spectral regions. We have explored the pulse energy scaling until the stimulated Raman Scattering (SRS) becomes significant (i.e. spectral peak intensity exceeds 1% of that of the signal).

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More information

e-pub ahead of print date: 3 September 2014
Published date: September 2014
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 368736
URI: http://eprints.soton.ac.uk/id/eprint/368736
ISSN: 1094-4087
PURE UUID: 29ac9941-ca3a-4bd5-a1ff-c4185e428489
ORCID for David J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058
ORCID for David P. Shepherd: ORCID iD orcid.org/0000-0002-4561-8184

Catalogue record

Date deposited: 11 Sep 2014 09:32
Last modified: 09 Jan 2022 02:40

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Contributors

Author: Ho-Yin Chan
Author: Shaif-ul Alam
Author: Lin Xu
Author: James Bateman
Author: David P. Shepherd ORCID iD

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