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High-energy diode-seeded nanosecond 2µm fiber MOPA systems incorporating active pulse shaping

High-energy diode-seeded nanosecond 2µm fiber MOPA systems incorporating active pulse shaping
High-energy diode-seeded nanosecond 2µm fiber MOPA systems incorporating active pulse shaping
We report on high-energy nanosecond-pulsed fiber master oscillator power amplifier (MOPA) systems seeded by semiconductor laser diodes at 2µm incorporating arbitrary pulse-shaping capabilities. Two MOPA systems, one based on direct diode modulation and the second using additional electro-optic modulator (EOM) based shaping, are investigated, with up to 0.5mJ (25kHz) and 1.0mJ (12.5kHz) pulse energies achieved, respectively, for 100ns pulses with user-defined pulse shapes. Our results indicate that further energy scaling with shaped output pulses is primarily limited by the maximum pulse peak power available from the seed laser diode and the dynamic range offered by the first generation of EOMs at 2µm.
0146-9592
1569-1572
Li, Z.
01f60f1d-54b7-4c19-b3f3-9550f9d77733
Heidt, A.M.
18f56d74-848c-420c-9ece-715e3e94e97a
Teh, P.S.
17137d0f-4594-4db7-9821-11a6bc03fcce
Berendt, M.
8bbeb612-7bcf-4d49-8448-b3c0ef3cc362
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Phelan, R.
59941308-c3b0-4474-b5cb-d20243970a2c
Kelly, B.
b022c0e7-c401-40cc-b646-ec55722f7c67
Alam, S.U.
2b6bdbe5-ddcc-4a88-9057-299360b93435
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Li, Z.
01f60f1d-54b7-4c19-b3f3-9550f9d77733
Heidt, A.M.
18f56d74-848c-420c-9ece-715e3e94e97a
Teh, P.S.
17137d0f-4594-4db7-9821-11a6bc03fcce
Berendt, M.
8bbeb612-7bcf-4d49-8448-b3c0ef3cc362
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Phelan, R.
59941308-c3b0-4474-b5cb-d20243970a2c
Kelly, B.
b022c0e7-c401-40cc-b646-ec55722f7c67
Alam, S.U.
2b6bdbe5-ddcc-4a88-9057-299360b93435
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3

Li, Z., Heidt, A.M., Teh, P.S., Berendt, M., Sahu, J.K., Phelan, R., Kelly, B., Alam, S.U. and Richardson, D.J. (2014) High-energy diode-seeded nanosecond 2µm fiber MOPA systems incorporating active pulse shaping. Optics Letters, 39 (6), 1569-1572. (doi:10.1364/OL.39.001569).

Record type: Article

Abstract

We report on high-energy nanosecond-pulsed fiber master oscillator power amplifier (MOPA) systems seeded by semiconductor laser diodes at 2µm incorporating arbitrary pulse-shaping capabilities. Two MOPA systems, one based on direct diode modulation and the second using additional electro-optic modulator (EOM) based shaping, are investigated, with up to 0.5mJ (25kHz) and 1.0mJ (12.5kHz) pulse energies achieved, respectively, for 100ns pulses with user-defined pulse shapes. Our results indicate that further energy scaling with shaped output pulses is primarily limited by the maximum pulse peak power available from the seed laser diode and the dynamic range offered by the first generation of EOMs at 2µm.

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More information

Published date: 2014
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 365886
URI: http://eprints.soton.ac.uk/id/eprint/365886
ISSN: 0146-9592
PURE UUID: 37e469de-815f-4101-804b-dd623c066c47
ORCID for J.K. Sahu: ORCID iD orcid.org/0000-0003-3560-6152
ORCID for D.J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

Catalogue record

Date deposited: 20 Jun 2014 12:58
Last modified: 09 Jan 2022 03:06

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Contributors

Author: Z. Li
Author: A.M. Heidt
Author: P.S. Teh
Author: M. Berendt
Author: J.K. Sahu ORCID iD
Author: R. Phelan
Author: B. Kelly
Author: S.U. Alam
Author: D.J. Richardson ORCID iD

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