Title: Using optimal cavity loss and saturable-absorber passive filter for stable and tunable dual-wavelength erbium fiber laser in single-longitudinal-mode operation
Authors: Yeh, C. H.
Chow, C. W.
Wu, Y. F.
Lin, Y. H.
Cheng, B. C.
Chen, J. H.
Department of Photonics
Keywords: erbium-doped fiber (EDF);dual-wavelength;single-longitudinal-mode (SLM);fiber laser
Issue Date: 1-Sep-2011
Abstract: In this investigation, we propose and demonstrate experimentally tunable and stable dual-wavelength erbium doped fiber (EDF) double-ring laser scheme using different coupling losses inside cavity loop for wavelength and mode spacing tuning. Besides, a shorter unpumped EDF is also used to filter the side-modes for lasing wavelength in single-longitudinal-mode (SLM) operation. However, the output mode spacing of dual-wavelength could be limited owing to the homogeneous broadening nature of EDF. As a result, the output performance of the proposed fiber laser have also been analyzed and discussed, such as wavelength tuning range, output power, side-mode suppression ratio (SMSR), stabilities of lasing wavelength and power, relative intensity noise (RIN), etc. (C) 2011 by Astro Ltd. Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA
URI: http://dx.doi.org/10.1002/lapl.201110043
ISSN: 1612-2011
DOI: 10.1002/lapl.201110043
Volume: 8
Issue: 9
Begin Page: 672
End Page: 677
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