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Spectral gain control using shaped pump pulses in a counter-pumped cascaded fiber Raman amplifier

Spectral gain control using shaped pump pulses in a counter-pumped cascaded fiber Raman amplifier
Spectral gain control using shaped pump pulses in a counter-pumped cascaded fiber Raman amplifier
We investigate the Raman gain spectra produced from pulse-pumping a highly nonlinear fiber with shaped optical pulses delivered from a Yb-doped fiber MOPA pump source. Cascaded Raman wavelength shifting up to seven Stokes orders is demonstrated and the counter-propagating gain is measured across all seven Stokes orders. Step-shaped optical pulses with varying instantaneous powers are then used to pump the highly nonlinear fiber, generating a controllable gain spectrum across multiple Stokes orders. Furthermore, we extend this work by using multiple pump wavelengths along with step-shaped pulses to increase the bandwidth of the Raman gain spectrum.
1094-4087
24126-24139
Farrell, Carl
417c550c-6fa6-4a78-8665-6e30b1626a28
Codemard, Christophe
3aa50483-b61c-4e7e-b178-c9a88bb47bef
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Farrell, Carl
417c550c-6fa6-4a78-8665-6e30b1626a28
Codemard, Christophe
3aa50483-b61c-4e7e-b178-c9a88bb47bef
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b

Farrell, Carl, Codemard, Christophe and Nilsson, J. (2010) Spectral gain control using shaped pump pulses in a counter-pumped cascaded fiber Raman amplifier. Optics Express, 18 (23), 24126-24139. (doi:10.1364/OE.18.024126).

Record type: Article

Abstract

We investigate the Raman gain spectra produced from pulse-pumping a highly nonlinear fiber with shaped optical pulses delivered from a Yb-doped fiber MOPA pump source. Cascaded Raman wavelength shifting up to seven Stokes orders is demonstrated and the counter-propagating gain is measured across all seven Stokes orders. Step-shaped optical pulses with varying instantaneous powers are then used to pump the highly nonlinear fiber, generating a controllable gain spectrum across multiple Stokes orders. Furthermore, we extend this work by using multiple pump wavelengths along with step-shaped pulses to increase the bandwidth of the Raman gain spectrum.

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Published date: November 2010

Identifiers

Local EPrints ID: 176811
URI: https://eprints.soton.ac.uk/id/eprint/176811
ISSN: 1094-4087
PURE UUID: 4abdc701-618f-4ede-9cf0-40e7ac1eeaa3
ORCID for J. Nilsson: ORCID iD orcid.org/0000-0003-1691-7959

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Date deposited: 11 Mar 2011 10:26
Last modified: 19 Sep 2019 00:37

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Contributors

Author: Carl Farrell
Author: Christophe Codemard
Author: J. Nilsson ORCID iD

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