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295kW peak power picosecond pulses from a thulium doped fiber MOPA and the generation of watt-level >2.5 octave supercontinuum extending up to 5μm

295kW peak power picosecond pulses from a thulium doped fiber MOPA and the generation of watt-level >2.5 octave supercontinuum extending up to 5μm
295kW peak power picosecond pulses from a thulium doped fiber MOPA and the generation of watt-level >2.5 octave supercontinuum extending up to 5μm
We report a gain-switched diode-seeded thulium doped fiber master oscillator power amplifier (MOPA) producing up to 295-kW picosecond pulses (35 ps) at a repetition rate of 1 MHz with a good beam quality (M2~ 1.3). A narrow-band, grating-based filter was incorporated within the amplifier chain to restrict the accumulation of nonlinear spectral broadening and counter-pumping of a short length of large-mode-area (LMA) fiber was used in the final stage amplifier to further reduce nonlinear effects. Finally, we generated watt-level> 2.5-octave supercontinuum spanning from 750 nm to 5000 nm by using the MOPA output to pump an indium fluoride fiber.
1094-4087
6490-6498
Liang, Sijing
0bb48ad1-5bd9-4764-9664-5017a65db7d0
Xu, Lin
b887cecd-d21e-49f4-9b45-6909a7369e84
Fu, Qiang
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Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Shepherd, David
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Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Alam, Shaif-Ul
2b6bdbe5-ddcc-4a88-9057-299360b93435
Liang, Sijing
0bb48ad1-5bd9-4764-9664-5017a65db7d0
Xu, Lin
b887cecd-d21e-49f4-9b45-6909a7369e84
Fu, Qiang
c57afce6-b73b-4999-8469-1fb2947f5dbf
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Shepherd, David
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Richardson, David
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Alam, Shaif-Ul
2b6bdbe5-ddcc-4a88-9057-299360b93435

Liang, Sijing, Xu, Lin, Fu, Qiang, Jung, Yongmin, Shepherd, David, Richardson, David and Alam, Shaif-Ul (2018) 295kW peak power picosecond pulses from a thulium doped fiber MOPA and the generation of watt-level >2.5 octave supercontinuum extending up to 5μm. Optics Express, 26 (6), 6490-6498. (doi:10.1364/OE.26.006490).

Record type: Article

Abstract

We report a gain-switched diode-seeded thulium doped fiber master oscillator power amplifier (MOPA) producing up to 295-kW picosecond pulses (35 ps) at a repetition rate of 1 MHz with a good beam quality (M2~ 1.3). A narrow-band, grating-based filter was incorporated within the amplifier chain to restrict the accumulation of nonlinear spectral broadening and counter-pumping of a short length of large-mode-area (LMA) fiber was used in the final stage amplifier to further reduce nonlinear effects. Finally, we generated watt-level> 2.5-octave supercontinuum spanning from 750 nm to 5000 nm by using the MOPA output to pump an indium fluoride fiber.

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Accepted/In Press date: 19 January 2018
e-pub ahead of print date: 5 March 2018
Published date: 19 March 2018

Identifiers

Local EPrints ID: 419150
URI: http://eprints.soton.ac.uk/id/eprint/419150
ISSN: 1094-4087
PURE UUID: 76ad0e9a-a5a1-4236-b53f-f12f0a08891c
ORCID for Sijing Liang: ORCID iD orcid.org/0000-0003-2477-9525
ORCID for Yongmin Jung: ORCID iD orcid.org/0000-0002-9054-4372
ORCID for David Shepherd: ORCID iD orcid.org/0000-0002-4561-8184
ORCID for David Richardson: ORCID iD orcid.org/0000-0002-7751-1058

Catalogue record

Date deposited: 06 Apr 2018 16:30
Last modified: 26 Nov 2021 02:53

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Contributors

Author: Sijing Liang ORCID iD
Author: Lin Xu
Author: Qiang Fu
Author: Yongmin Jung ORCID iD
Author: David Shepherd ORCID iD
Author: Shaif-Ul Alam

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