Isolator-free switchable uni- and bidirectional hybrid mode-locked erbium-doped fiber laser

Maria Chernysheva, Mohammed Al Araimi, Hani Kbashi, Raz Arif, Sergey V. Sergeyev, Aleksey Rozhin

Research output: Contribution to journalArticle

Abstract

An Erbium-doped fibre ring laser hybrid mode-locked with single-wall carbon nanotubes (SWNT) and nonlinear polarisation evolution (NPE) without an optical isolator has been investigated for various cavity conditions. Precise control of the state of polarisation (SOP) in the cavity ensures different losses for counter-propagating optical fields. As the result, the laser operates in quasi-unidirectional regime in both clockwise (CW) and counter-clockwise (CCW) directions with the emission strengths difference of the directions of 22 dB. Furthermore, by adjusting the net birefringence in the cavity, the laser can operate in a bidirectional generation. In this case, a laser pumped with 75 mW power at 980 nm generates almost identical 790 and 570 fs soliton pulses with an average power of 1.17 and 1.11 mW. The operation stability and pulse quality of the soliton pulses in both unidirectional regimes are highly competitive with those generated in conventional ring fibre lasers with isolator in the cavity. Demonstrated bidirectional laser operation can find vital applications in gyroscopes or precision rotation sensing technologies.

Original languageEnglish
Pages (from-to)15721-15729
Number of pages9
JournalOptics Express
Volume24
Issue number14
Early online date1 Jul 2016
DOIs
Publication statusPublished - 11 Jul 2016

Fingerprint

isolators
erbium
fiber lasers
cavities
ring lasers
lasers
counters
solitary waves
pulses
gyroscopes
polarization
birefringence
adjusting
carbon nanotubes

Bibliographical note

© 2016 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.

Funding: Marie-Curie Inter-national Research Staff Exchange Scheme “TelaSens" project, Research Executive Agency Grant No 269271, Programme: FP7-PEOPLE-2010-IRSES and the European Research Council through the FP7-IDEAS-ERC grant ULTRALASER is gratefully acknowledged. M. C. acknowledges the support of EU Horizon2020 Marie S.-Curie IF MINDFLY project.

Cite this

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title = "Isolator-free switchable uni- and bidirectional hybrid mode-locked erbium-doped fiber laser",
abstract = "An Erbium-doped fibre ring laser hybrid mode-locked with single-wall carbon nanotubes (SWNT) and nonlinear polarisation evolution (NPE) without an optical isolator has been investigated for various cavity conditions. Precise control of the state of polarisation (SOP) in the cavity ensures different losses for counter-propagating optical fields. As the result, the laser operates in quasi-unidirectional regime in both clockwise (CW) and counter-clockwise (CCW) directions with the emission strengths difference of the directions of 22 dB. Furthermore, by adjusting the net birefringence in the cavity, the laser can operate in a bidirectional generation. In this case, a laser pumped with 75 mW power at 980 nm generates almost identical 790 and 570 fs soliton pulses with an average power of 1.17 and 1.11 mW. The operation stability and pulse quality of the soliton pulses in both unidirectional regimes are highly competitive with those generated in conventional ring fibre lasers with isolator in the cavity. Demonstrated bidirectional laser operation can find vital applications in gyroscopes or precision rotation sensing technologies.",
author = "Maria Chernysheva and {Al Araimi}, Mohammed and Hani Kbashi and Raz Arif and Sergeyev, {Sergey V.} and Aleksey Rozhin",
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Isolator-free switchable uni- and bidirectional hybrid mode-locked erbium-doped fiber laser. / Chernysheva, Maria; Al Araimi, Mohammed; Kbashi, Hani; Arif, Raz; Sergeyev, Sergey V.; Rozhin, Aleksey.

In: Optics Express, Vol. 24, No. 14, 11.07.2016, p. 15721-15729.

Research output: Contribution to journalArticle

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AU - Chernysheva, Maria

AU - Al Araimi, Mohammed

AU - Kbashi, Hani

AU - Arif, Raz

AU - Sergeyev, Sergey V.

AU - Rozhin, Aleksey

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