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Robust dual-wavelength ring-laser based on two spectrally different erbium-doped fiber amplifiers

Robust dual-wavelength ring-laser based on two spectrally different erbium-doped fiber amplifiers
Robust dual-wavelength ring-laser based on two spectrally different erbium-doped fiber amplifiers
The authors demonstrate simultaneous lasing at two wavelengths in a fiber ring-laser containing two erbium-doped fiber amplifiers with different spectral characteristics. The lasing wavelengths were selected by a filter combination. For certain wavelength pairs, the ring co-lased even if the loss at one wavelength increased by 8 dB relative to the loss at the other one, while a 1-dB change was enough to prevent co-lasing in a ring with two similar amplifiers. The increased robustness-to-loss variations is a consequence of the overall spectral gain inhomogeneity that results from combining two amplifiers with different gain spectra. The concept is also applicable to dual-wavelength transmission.
1041-1135
1630-1632
Nilsson, Johan
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Lee, Y.W.
96502324-4426-4082-84d2-008af7eb1451
Kim, S.J.
1164a64c-4b53-4c30-a7e5-a81a87cd8d3c
Nilsson, Johan
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Lee, Y.W.
96502324-4426-4082-84d2-008af7eb1451
Kim, S.J.
1164a64c-4b53-4c30-a7e5-a81a87cd8d3c

Nilsson, Johan, Lee, Y.W. and Kim, S.J. (1996) Robust dual-wavelength ring-laser based on two spectrally different erbium-doped fiber amplifiers. IEEE Photonics Technology Letters, 8 (12), 1630-1632. (doi:10.1109/68.544700).

Record type: Article

Abstract

The authors demonstrate simultaneous lasing at two wavelengths in a fiber ring-laser containing two erbium-doped fiber amplifiers with different spectral characteristics. The lasing wavelengths were selected by a filter combination. For certain wavelength pairs, the ring co-lased even if the loss at one wavelength increased by 8 dB relative to the loss at the other one, while a 1-dB change was enough to prevent co-lasing in a ring with two similar amplifiers. The increased robustness-to-loss variations is a consequence of the overall spectral gain inhomogeneity that results from combining two amplifiers with different gain spectra. The concept is also applicable to dual-wavelength transmission.

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Published date: December 1996

Identifiers

Local EPrints ID: 440941
URI: http://eprints.soton.ac.uk/id/eprint/440941
ISSN: 1041-1135
PURE UUID: d6637bbf-a5b7-4dd4-922e-0509789e3960
ORCID for Johan Nilsson: ORCID iD orcid.org/0000-0003-1691-7959

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Date deposited: 22 May 2020 16:40
Last modified: 23 May 2020 00:26

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